diff --git a/src/Battling/Models/BattleCreature.cpp b/src/Battling/Models/BattleCreature.cpp
index 4453b94..afcf5fb 100644
--- a/src/Battling/Models/BattleCreature.cpp
+++ b/src/Battling/Models/BattleCreature.cpp
@@ -21,11 +21,11 @@ void Battling::BattleCreature::ApplyPostBattleEffects() {
 
 }
 
-uint32_t Battling::BattleCreature::GetFlatStat(Core::Statistic stat) {
+uint32_t Battling::BattleCreature::GetFlatStat(Core::Statistic stat) const{
     return _flatStats.GetStat(stat);
 }
 
-uint32_t Battling::BattleCreature::GetBoostedStat(Core::Statistic stat) {
+uint32_t Battling::BattleCreature::GetBoostedStat(Core::Statistic stat) const{
     return _boostedStats.GetStat(stat);
 }
 
@@ -46,4 +46,12 @@ void Battling::BattleCreature::RecalculateFlatStat(Core::Statistic stat) {
 void Battling::BattleCreature::RecalculateBoostedStat(Core::Statistic stat) {
     auto s = this->__Battle->GetLibrary()->GetStatCalculator()->CalculateBoostedStat(this, stat);
     this->_boostedStats.SetStat(stat, s);
+}
+
+void Battling::BattleCreature::ChangeStatBoost(Core::Statistic stat, int8_t diffAmount){
+    if (diffAmount > 0)
+        this->_statBoost.IncreaseStatBy(stat, diffAmount);
+    else
+        this->_statBoost.DecreaseStatBy(stat, diffAmount);
+    this->RecalculateBoostedStat(stat);
 }
\ No newline at end of file
diff --git a/src/Battling/Models/BattleCreature.hpp b/src/Battling/Models/BattleCreature.hpp
index 7fadec1..563d180 100644
--- a/src/Battling/Models/BattleCreature.hpp
+++ b/src/Battling/Models/BattleCreature.hpp
@@ -24,13 +24,15 @@ namespace CreatureLib::Battling{
         const Library::Creature* GetBackingCreature();
         void ApplyPostBattleEffects();
 
-        uint32_t GetFlatStat(Core::Statistic stat);
-        uint32_t GetBoostedStat(Core::Statistic stat);
+        uint32_t GetFlatStat(Core::Statistic stat) const;
+        uint32_t GetBoostedStat(Core::Statistic stat) const;
+
         void RecalculateFlatStats();
         void RecalculateBoostedStats();
-
         void RecalculateFlatStat(Core::Statistic);
         void RecalculateBoostedStat(Core::Statistic);
+
+        void ChangeStatBoost(Core::Statistic stat, int8_t diffAmount);
     };
 }
 
diff --git a/src/Core/StatisticSet.cpp b/src/Core/StatisticSet.cpp
deleted file mode 100644
index e69de29..0000000
diff --git a/src/Core/StatisticSet.hpp b/src/Core/StatisticSet.hpp
index 63d2e42..f6880be 100644
--- a/src/Core/StatisticSet.hpp
+++ b/src/Core/StatisticSet.hpp
@@ -55,6 +55,29 @@ namespace CreatureLib::Core{
             }
             throw std::exception();
         }
+
+        inline void IncreaseStatBy(Statistic stat, T amount){
+            switch (stat){
+                case Health: _health += amount;
+                case PhysicalAttack: _physicalAttack += amount;
+                case PhysicalDefense: _physicalDefense += amount;
+                case MagicalAttack: _magicalAttack += amount;
+                case MagicalDefense: _magicalDefense += amount;
+                case Speed: _speed += amount;
+            }
+            throw std::exception();
+        }
+        inline void DecreaseStatBy(Statistic stat, T amount){
+            switch (stat){
+                case Health: _health -= amount;
+                case PhysicalAttack: _physicalAttack -= amount;
+                case PhysicalDefense: _physicalDefense -= amount;
+                case MagicalAttack: _magicalAttack -= amount;
+                case MagicalDefense: _magicalDefense -= amount;
+                case Speed: _speed -= amount;
+            }
+            throw std::exception();
+        }
     };
 }