diff --git a/.gitmodules b/.gitmodules
index 4256800..7e95e64 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "external/ImFileDialog"]
 	path = external/ImFileDialog
 	url = https://github.com/dfranx/ImFileDialog.git
+[submodule "external/svector"]
+	path = external/svector
+	url = https://github.com/martinus/svector.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6098595..37301d6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -35,6 +35,8 @@ else ()
     message(STATUS "ccache not found")
 endif ()
 
+add_subdirectory(external/svector)
+
 option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
 option(GLFW_BUILD_EXAMPLES "Build the GLFW example programs" OFF)
 option(GLFW_BUILD_TESTS "Build the GLFW test programs" OFF)
@@ -104,7 +106,7 @@ add_executable(BillySheet ${SOURCES})
 
 target_include_directories(BillySheet PRIVATE include include/imgui external/ImFileDialog)
 
-set_target_properties(BillySheet spdlog PROPERTIES
+set_target_properties(BillySheet spdlog svector PROPERTIES
                       CXX_STANDARD 17
                       CXX_STANDARD_REQUIRED ON
                       CXX_EXTENSIONS OFF
@@ -112,7 +114,7 @@ set_target_properties(BillySheet spdlog PROPERTIES
                       # UNITY_BUILD ON
 )
 
-set_target_properties(spdlog PROPERTIES UNITY_BUILD ON)
+set_target_properties(spdlog svector PROPERTIES UNITY_BUILD ON)
 
 set_target_properties(glfw PROPERTIES
                       C_STANDARD 11
@@ -122,27 +124,35 @@ set_target_properties(glfw PROPERTIES
                       UNITY_BUILD ON
 )
 
-set_target_properties(spdlog PROPERTIES UNITY_BUILD ON)
 
 target_compile_definitions(BillySheet PRIVATE
                            $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>
                            $<$<CONFIG:Debug>:SPDLOG_ACTIVE_LEVEL=SPDLOG_LEVEL_DEBUG>
                            $<$<CONFIG:Release>:SPDLOG_ACTIVE_LEVEL=SPDLOG_LEVEL_ERROR>)
 
-target_compile_definitions(spdlog PRIVATE
-                           $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>)
-
-target_compile_definitions(glfw PRIVATE
-                           $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>)
+target_compile_definitions(spdlog PRIVATE $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>)
+target_compile_definitions(svector INTERFACE $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>)
+target_compile_definitions(glfw PRIVATE $<$<CONFIG:Debug>:_GLIBCXX_DEBUG>)
 
 target_compile_options(spdlog PRIVATE ${COMPILE_FLAGS})
+target_compile_options(svector INTERFACE ${COMPILE_FLAGS})
 target_compile_options(glfw PRIVATE ${COMPILE_FLAGS})
 target_compile_options(BillySheet PRIVATE ${COMPILE_FLAGS})
 
 target_link_options(spdlog PRIVATE ${LINKER_OPTIONS})
+target_link_options(svector INTERFACE ${LINKER_OPTIONS})
 target_link_options(glfw PRIVATE ${LINKER_OPTIONS})
 target_link_options(BillySheet PRIVATE ${LINKER_OPTIONS})
 
 target_link_libraries(spdlog PRIVATE ${LINKER_FLAGS})
+target_link_libraries(svector INTERFACE ${LINKER_FLAGS})
 target_link_libraries(glfw PRIVATE ${LINKER_FLAGS})
-target_link_libraries(BillySheet glfw spdlog::spdlog_header_only OpenGL::OpenGL GLEW::GLEW nlohmann_json::nlohmann_json ${Boost_LIBRARIES} ${LINKER_FLAGS})
+target_link_libraries(BillySheet glfw
+                      spdlog::spdlog_header_only
+                      svector::svector
+                      OpenGL::OpenGL
+                      GLEW::GLEW
+                      nlohmann_json::nlohmann_json
+                      ${Boost_LIBRARIES}
+                      ${LINKER_FLAGS}
+)
diff --git a/external/svector b/external/svector
new file mode 160000
index 0000000..74817cf
--- /dev/null
+++ b/external/svector
@@ -0,0 +1 @@
+Subproject commit 74817cfbdbaceb415508de1ff10a0589bf8f25d7
diff --git a/include/billy_objects.hpp b/include/billy_objects.hpp
index 7b4b95b..5b9b9c7 100644
--- a/include/billy_objects.hpp
+++ b/include/billy_objects.hpp
@@ -10,6 +10,7 @@
 #include <functional>
 #include <variant>
 #include <string_view>
+#include <ankerl/svector.h>
 #include "characteristic/characteristic.hpp"
 
 // helper type for the visitor
@@ -45,7 +46,7 @@ namespace character {
     class BillyObjects final {
     public:
         using billyObject = std::variant<weapons, equipments, tools>;
-        using container = std::array<billyObject, 3>;
+        using container = ankerl::svector<billyObject, 3>;
 
         static constexpr std::string_view sword{ "Sword" };
         static constexpr std::string_view lance{ "Lance" };
@@ -68,9 +69,7 @@ namespace character {
 
         void pop_object(CharacterSheet &sheet) noexcept;
 
-        [[nodiscard]] std::pair<const container &, std::int8_t> get_objects() const noexcept {
-            return { objects, end_object };
-        }
+        [[nodiscard]] const container &get_objects() const noexcept { return objects; }
 
 //        void insert_weapon(weapons weapon, CharacterSheet &sheet) noexcept;
 
@@ -78,34 +77,30 @@ namespace character {
         container objects;
         std::plus<std::uint32_t> plus;
         std::minus<std::uint32_t> minus;
-        std::uint8_t end_object{ 0 };
 
         static void change_carac_weapon(const weapons &arg,
-                                        CharacterSheet &sheet,
-                                        characteristic::Characteristic &localHabilete,
-                                        characteristic::Characteristic &localAdresse,
-                                        characteristic::Characteristic &localEndurance,
-                                        const std::function<std::uint32_t(std::uint32_t,
-                                                                          std::uint32_t)> &operation) noexcept;
+                CharacterSheet &sheet,
+                characteristic::Characteristic &localHabilete,
+                characteristic::Characteristic &localAdresse,
+                characteristic::Characteristic &localEndurance,
+                const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &operation) noexcept;
 
         static void change_carac_equipment(const equipments &arg,
-                                           CharacterSheet &sheet,
-                                           characteristic::Characteristic &localHabilete,
-                                           characteristic::Characteristic &localAdresse,
-                                           characteristic::Characteristic &localEndurance,
-                                           characteristic::Characteristic &localChance,
-                                           const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &primary,
-                                           const std::function<std::uint32_t(std::uint32_t,
-                                                                             std::uint32_t)> &complement) noexcept;
+                CharacterSheet &sheet,
+                characteristic::Characteristic &localHabilete,
+                characteristic::Characteristic &localAdresse,
+                characteristic::Characteristic &localEndurance,
+                characteristic::Characteristic &localChance,
+                const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &primary,
+                const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &complement) noexcept;
 
         static void change_carac_tools(const tools &arg,
-                                       CharacterSheet &sheet,
-                                       characteristic::Characteristic &localHabilete,
-                                       characteristic::Characteristic &localAdresse,
-                                       characteristic::Characteristic &localEndurance,
-                                       characteristic::Characteristic &localChance,
-                                       const std::function<std::uint32_t(std::uint32_t,
-                                                                         std::uint32_t)> &operation) noexcept;
+                CharacterSheet &sheet,
+                characteristic::Characteristic &localHabilete,
+                characteristic::Characteristic &localAdresse,
+                characteristic::Characteristic &localEndurance,
+                characteristic::Characteristic &localChance,
+                const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &operation) noexcept;
     };
 }
 
diff --git a/include/character_sheet.hpp b/include/character_sheet.hpp
index b19ce82..cd608b9 100644
--- a/include/character_sheet.hpp
+++ b/include/character_sheet.hpp
@@ -45,6 +45,8 @@ namespace character {
 
         std::uint32_t damage{ 0 };
 
+        std::uint32_t critique{ 0 };
+
         std::uint32_t glory{ 0 };
 
         std::uint32_t money{ 0 };
diff --git a/include/characteristic/characteristic.hpp b/include/characteristic/characteristic.hpp
index d52479c..d41000f 100644
--- a/include/characteristic/characteristic.hpp
+++ b/include/characteristic/characteristic.hpp
@@ -25,9 +25,9 @@ namespace character::characteristic {
         Characteristic() noexcept = default;
 
         Characteristic(const std::uint32_t base,
-                       const std::uint32_t carac,
-                       const std::uint32_t materiel,
-                       const std::uint32_t additional) noexcept:
+                const std::uint32_t carac,
+                const std::uint32_t materiel,
+                const std::uint32_t additional) noexcept:
                 base(base), carac(carac), materiel(materiel), additional(additional) { (void) get_total(); }
 
         Characteristic(const Characteristic &charac) noexcept = default;
diff --git a/include/gui/menu/menu_data.hpp b/include/gui/menu/menu_data.hpp
index d40bc1f..883a316 100644
--- a/include/gui/menu/menu_data.hpp
+++ b/include/gui/menu/menu_data.hpp
@@ -37,10 +37,10 @@ namespace gui::menu {
         [[nodiscard]] bool is_edit_mode() const { return edit_mode; }
 
         void set_save_path([[maybe_unused]] const Controller &controller,
-                           const fs::path &savePath) const { save_path = savePath; }
+                const fs::path &savePath) const { save_path = savePath; }
 
         void set_filename([[maybe_unused]] const Controller &controller,
-                          const std::string &fileName) const { filename = fileName; }
+                const std::string &fileName) const { filename = fileName; }
     };
 }
 
diff --git a/src/billy_objects.cpp b/src/billy_objects.cpp
index dd69c23..ad4146e 100644
--- a/src/billy_objects.cpp
+++ b/src/billy_objects.cpp
@@ -9,9 +9,8 @@ namespace character {
     using characteristic::Characteristic;
 
     void BillyObjects::push_object(const billyObject &object, CharacterSheet &sheet) noexcept {
-        if (end_object < 3) {
-            objects.at(end_object) = object;
-            ++end_object;
+        if (objects.size() < 3) {
+            objects.emplace_back(object);
 
             auto &local_habilete = static_cast<Characteristic &>(sheet.habilete);
             auto &local_adresse = static_cast<Characteristic &>(sheet.adresse);
@@ -26,32 +25,32 @@ namespace character {
                     [&](const equipments &arg) {
                         ++sheet.nb_equipments;
                         change_carac_equipment(arg,
-                                               sheet,
-                                               local_habilete,
-                                               local_adresse,
-                                               local_endurance,
-                                               local_chance,
-                                               plus,
-                                               minus);
+                                sheet,
+                                local_habilete,
+                                local_adresse,
+                                local_endurance,
+                                local_chance,
+                                plus,
+                                minus);
                     },
                     [&](const tools &arg) {
                         ++sheet.nb_tools;
                         change_carac_tools(arg,
-                                           sheet,
-                                           local_habilete,
-                                           local_adresse,
-                                           local_endurance,
-                                           local_chance,
-                                           plus);
+                                sheet,
+                                local_habilete,
+                                local_adresse,
+                                local_endurance,
+                                local_chance,
+                                plus);
                     },
             }, object);
         }
     }
 
     void BillyObjects::pop_object(CharacterSheet &sheet) noexcept {
-        if (end_object > 0) {
-            const auto &obj = objects.at(end_object - 1);
-            --end_object;
+        if (!objects.empty()) {
+            const billyObject obj = objects.back();
+            objects.pop_back();
 
             auto &local_habilete = static_cast<Characteristic &>(sheet.habilete);
             auto &local_adresse = static_cast<Characteristic &>(sheet.adresse);
@@ -66,36 +65,35 @@ namespace character {
                     [&](const equipments &arg) {
                         --sheet.nb_equipments;
                         change_carac_equipment(arg,
-                                               sheet,
-                                               local_habilete,
-                                               local_adresse,
-                                               local_endurance,
-                                               local_chance,
-                                               minus,
-                                               plus);
+                                sheet,
+                                local_habilete,
+                                local_adresse,
+                                local_endurance,
+                                local_chance,
+                                minus,
+                                plus);
                     },
                     [&](const tools &arg) {
                         --sheet.nb_tools;
                         change_carac_tools(arg,
-                                           sheet,
-                                           local_habilete,
-                                           local_adresse,
-                                           local_endurance,
-                                           local_chance,
-                                           minus);
+                                sheet,
+                                local_habilete,
+                                local_adresse,
+                                local_endurance,
+                                local_chance,
+                                minus);
                     }
             }, obj);
         }
     }
 
     void BillyObjects::change_carac_tools(const tools &arg,
-                                          CharacterSheet &sheet,
-                                          Characteristic &localHabilete,
-                                          Characteristic &localAdresse,
-                                          Characteristic &localEndurance,
-                                          Characteristic &localChance,
-                                          const std::function<std::uint32_t(std::uint32_t,
-                                                                            std::uint32_t)> &operation) noexcept {
+            CharacterSheet &sheet,
+            Characteristic &localHabilete,
+            Characteristic &localAdresse,
+            Characteristic &localEndurance,
+            Characteristic &localChance,
+            const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &operation) noexcept {
         switch (arg) {
             case tools::Fourche:
                 localHabilete.materiel = operation(localHabilete.materiel, 1);
@@ -114,14 +112,13 @@ namespace character {
     }
 
     void BillyObjects::change_carac_equipment(const equipments &arg,
-                                              CharacterSheet &sheet,
-                                              Characteristic &localHabilete,
-                                              Characteristic &localAdresse,
-                                              Characteristic &localEndurance,
-                                              Characteristic &localChance,
-                                              const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &primary,
-                                              const std::function<std::uint32_t(std::uint32_t,
-                                                                                std::uint32_t)> &complement) noexcept {
+            CharacterSheet &sheet,
+            Characteristic &localHabilete,
+            Characteristic &localAdresse,
+            Characteristic &localEndurance,
+            Characteristic &localChance,
+            const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &primary,
+            const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &complement) noexcept {
         switch (arg) {
             case equipments::Chainmail:
                 localHabilete.materiel = complement(localHabilete.materiel, 1);
@@ -143,12 +140,11 @@ namespace character {
     }
 
     void BillyObjects::change_carac_weapon(const weapons &arg,
-                                           CharacterSheet &sheet,
-                                           Characteristic &localHabilete,
-                                           Characteristic &localAdresse,
-                                           Characteristic &localEndurance,
-                                           const std::function<std::uint32_t(std::uint32_t,
-                                                                             std::uint32_t)> &operation) noexcept {
+            CharacterSheet &sheet,
+            Characteristic &localHabilete,
+            Characteristic &localAdresse,
+            Characteristic &localEndurance,
+            const std::function<std::uint32_t(std::uint32_t, std::uint32_t)> &operation) noexcept {
         switch (arg) {
             case weapons::Sword:
                 localHabilete.materiel = operation(localHabilete.materiel, 4);
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 62a65ae..32f3f77 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -53,13 +53,14 @@ void gui::Gui::render_gui(const Controller &controller) {
         menu.gui();
 
         if (ImGui::BeginCombo("Classe",
-                              GuiData::classes[static_cast<std::uint32_t>(data.billy.get_current_class())].data(),
-                              ImGuiComboFlags_PopupAlignLeft)) {
+                GuiData::classes[static_cast<std::uint32_t>(data.billy.get_current_class())].data(),
+                ImGuiComboFlags_PopupAlignLeft)) {
             for (std::size_t i = 0; i < GuiData::classes.size(); ++i) {
                 const bool is_selected = (data.billy.get_current_class() == static_cast<character::classe>(i));
 
-                if (is_selected)
+                if (is_selected) {
                     ImGui::SetItemDefaultFocus();
+                }
             }
             ImGui::EndCombo();
         }
@@ -131,8 +132,8 @@ void gui::Gui::characteristic_gui(const Characteristic &characteristic) noexcept
 
 void gui::Gui::habilete_menu() noexcept {
     ImGui::BeginChild("habilete",
-                      ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.2f),
-                      ImGuiChildFlags_Border);
+            ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.2f),
+            ImGuiChildFlags_Border);
     ImGui::Text("Habileté");
     characteristic_gui(static_cast<const Characteristic &>(data.billy.get_habilete()));
     ImGui::EndChild();
@@ -140,8 +141,8 @@ void gui::Gui::habilete_menu() noexcept {
 
 void gui::Gui::adresse_menu() noexcept {
     ImGui::BeginChild("adresse",
-                      ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.2f),
-                      ImGuiChildFlags_Border);
+            ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.2f),
+            ImGuiChildFlags_Border);
     ImGui::Text("Adresse");
     characteristic_gui(static_cast<const Characteristic &>(data.billy.get_adresse()));
     ImGui::EndChild();
@@ -149,8 +150,8 @@ void gui::Gui::adresse_menu() noexcept {
 
 void gui::Gui::endurance_menu() noexcept {
     ImGui::BeginChild("endurance",
-                      ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.2f),
-                      ImGuiChildFlags_Border);
+            ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.2f),
+            ImGuiChildFlags_Border);
     ImGui::Text("Endurance");
     characteristic_gui(static_cast<const Characteristic &>(data.billy.get_endurance()));
     ImGui::EndChild();
@@ -158,25 +159,25 @@ void gui::Gui::endurance_menu() noexcept {
 
 void gui::Gui::chance_menu() noexcept {
     ImGui::BeginChild("chance",
-                      ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.2f),
-                      ImGuiChildFlags_Border);
+            ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.2f),
+            ImGuiChildFlags_Border);
     ImGui::Text("Chance");
-    characteristic_gui(static_cast<const Characteristic&>(data.billy.get_chance()));
+    characteristic_gui(static_cast<const Characteristic &>(data.billy.get_chance()));
     ImGui::EndChild();
 }
 
 void gui::Gui::stat_second_menu() noexcept {
     ImGui::BeginChild("stats secondaire",
-                      ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.4f),
-                      ImGuiChildFlags_Border);
+            ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.4f),
+            ImGuiChildFlags_Border);
     ImGui::Text("STAT. SECONDAIRES");
     ImGui::EndChild();
 }
 
 void gui::Gui::materiel_menu() noexcept {
     ImGui::BeginChild("materiel",
-                      ImVec2(ImGui::GetWindowWidth() / 3, 0),
-                      ImGuiChildFlags_Border | ImGuiChildFlags_AutoResizeY);
+            ImVec2(ImGui::GetWindowWidth() / 3, 0),
+            ImGuiChildFlags_Border | ImGuiChildFlags_AutoResizeY);
     ImGui::Text("Matériel");
 
     ImGui::BeginChild("weapons", ImVec2(0, 0), ImGuiChildFlags_Border | ImGuiChildFlags_AutoResizeY);
@@ -205,16 +206,16 @@ void gui::Gui::materiel_menu() noexcept {
 
 void gui::Gui::gloire_menu() noexcept {
     ImGui::BeginChild("gloire",
-                      ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.1f),
-                      ImGuiChildFlags_Border);
+            ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.1f),
+            ImGuiChildFlags_Border);
     ImGui::Text("Gloire");
     ImGui::EndChild();
 }
 
 void gui::Gui::richesse_menu() noexcept {
     ImGui::BeginChild("richesse",
-                      ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.1f),
-                      ImGuiChildFlags_Border);
+            ImVec2(ImGui::GetWindowWidth() / 3, ImGui::GetWindowHeight() * 0.1f),
+            ImGuiChildFlags_Border);
     ImGui::Text("Richesse");
     ImGui::EndChild();
 }
diff --git a/src/gui/menu/menu.cpp b/src/gui/menu/menu.cpp
index 3c79fd7..d057959 100644
--- a/src/gui/menu/menu.cpp
+++ b/src/gui/menu/menu.cpp
@@ -41,8 +41,8 @@ void gui::menu::Menu::gui() const noexcept {
             if (ImGui::MenuItem("Open file")) {
                 SPDLOG_DEBUG("Opening file");
                 ifd::FileDialog::Instance().Open(data.open_character_key,
-                                                 "Open a character sheet",
-                                                 "Character sheet (*.json){.json},.*");
+                        "Open a character sheet",
+                        "Character sheet (*.json){.json},.*");
                 SPDLOG_DEBUG("File opened");
             }
 
@@ -57,8 +57,8 @@ void gui::menu::Menu::gui() const noexcept {
             if (ImGui::MenuItem("Save as...")) {
                 SPDLOG_DEBUG("Saving with file dialog");
                 ifd::FileDialog::Instance().Save(data.save_character_key,
-                                                 "Save character sheet as...",
-                                                 "*.json {.json}");
+                        "Save character sheet as...",
+                        "*.json {.json}");
                 SPDLOG_DEBUG("File saved with dialog");
             }
 
diff --git a/src/gui/window.cpp b/src/gui/window.cpp
index ade8de1..5f8cbe9 100644
--- a/src/gui/window.cpp
+++ b/src/gui/window.cpp
@@ -21,11 +21,11 @@ gui::Window::Window() {
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
     wwindow = std::unique_ptr<GLFWwindow, decltype(&delete_glfw_window)>(glfwCreateWindow(720,
-                                                                                          1280,
-                                                                                          "Billy Sheet tracker",
-                                                                                          nullptr,
-                                                                                          nullptr),
-                                                                         delete_glfw_window);
+                    1280,
+                    "Billy Sheet tracker",
+                    nullptr,
+                    nullptr),
+            delete_glfw_window);
     if (!wwindow) {
         glfwTerminate();
         SPDLOG_CRITICAL("No GLFW window created, nullptr.");