diff --git a/Content.Shared/SS220/DarkReaper/DarkReaperComponent.cs b/Content.Shared/SS220/DarkReaper/DarkReaperComponent.cs
index 5745136decf2..8808c400de7f 100644
--- a/Content.Shared/SS220/DarkReaper/DarkReaperComponent.cs
+++ b/Content.Shared/SS220/DarkReaper/DarkReaperComponent.cs
@@ -112,7 +112,7 @@ public sealed partial class DarkReaperComponent : Component
     public float StunAbilityLightBreakRadius = 4.5f;
 
     /// <summary>
-    /// StunAbilityConfusion - radius in which entities are affected by confusion 
+    /// StunAbilityConfusion - radius in which entities are affected by confusion
     /// </summary>
     [DataField]
     public float StunAbilityConfusion = 12f;
@@ -252,7 +252,7 @@ public sealed partial class DarkReaperComponent : Component
         {
             { "Slash", 20 },
             { "Piercing", 16 },
-            { "Structural", 80 }
+            { "Structural", 60 }
         }
     };
 
@@ -268,7 +268,8 @@ public sealed partial class DarkReaperComponent : Component
             Coefficients = new()
             {
                 {"Radiation", 0},
-                {"Piercing", 0.8f}
+                {"Piercing", 0.7f},
+                {"Heat", 0.7f}
             }
         },
 
@@ -278,7 +279,8 @@ public sealed partial class DarkReaperComponent : Component
             Coefficients = new()
             {
                 {"Radiation", 0},
-                {"Piercing", 0.6f}
+                {"Piercing", 0.6f},
+                {"Heat", 0.6f}
             }
         },
 
diff --git a/Resources/Prototypes/Damage/modifier_sets.yml b/Resources/Prototypes/Damage/modifier_sets.yml
index d841d5bf2ce7..2d1284dc10fe 100644
--- a/Resources/Prototypes/Damage/modifier_sets.yml
+++ b/Resources/Prototypes/Damage/modifier_sets.yml
@@ -185,14 +185,14 @@
   coefficients:
     Blunt: 0.7
     Slash: 0.8
-    Heat: 1.5
+    Heat: 1.25 #SS220 lowTTKUpdate
     Shock: 1.2
 
 - type: damageModifierSet
   id: Moth # Slightly worse at everything but cold
   coefficients:
     Cold: 0.7
-    Heat: 1.3
+    Heat: 1.15 #SS220 lowTTKUpdate
 
 - type: damageModifierSet
   id: Vox
@@ -205,7 +205,7 @@
     Blunt: 0.6
     Piercing: 0.8
     Cold: 0.3
-    Heat: 1.25
+    Heat: 0.9 #SS220 lowTTKUpdate
     Poison: 0.0
     Radiation: 0.0
     Stamina: 0.5
diff --git a/Resources/Prototypes/Entities/Mobs/NPCs/regalrat.yml b/Resources/Prototypes/Entities/Mobs/NPCs/regalrat.yml
index 0cf75d67d942..79a8ba79233e 100644
--- a/Resources/Prototypes/Entities/Mobs/NPCs/regalrat.yml
+++ b/Resources/Prototypes/Entities/Mobs/NPCs/regalrat.yml
@@ -57,7 +57,7 @@
   - type: MobThresholds
     thresholds:
       0: Alive
-      200: Dead
+      250: Dead #SS220 Antag balance
   - type: MeleeWeapon
     altDisarm: false
     soundHit:
diff --git a/Resources/Prototypes/Entities/Mobs/Player/dragon.yml b/Resources/Prototypes/Entities/Mobs/Player/dragon.yml
index 1fbe336f9feb..4e1531511690 100644
--- a/Resources/Prototypes/Entities/Mobs/Player/dragon.yml
+++ b/Resources/Prototypes/Entities/Mobs/Player/dragon.yml
@@ -141,7 +141,7 @@
     foodPreference: Humanoid
     shouldStoreDevoured: true
     chemical: Ichor
-    healRate: 15.0
+    healRate: 25.0 #SS220 Antag balance
     whitelist:
       components:
       - MobState
diff --git a/Resources/Prototypes/Reagents/biological.yml b/Resources/Prototypes/Reagents/biological.yml
index 98b45d44a25c..8d6fcaaf04c3 100644
--- a/Resources/Prototypes/Reagents/biological.yml
+++ b/Resources/Prototypes/Reagents/biological.yml
@@ -193,7 +193,7 @@
           types:
             Bloodloss: -5
       - !type:ModifyBleedAmount
-        amount: -1.5
+        amount: -2 #SS220 Antag balance
   # Just in case you REALLY want to water your plants
   plantMetabolism:
   - !type:PlantAdjustWater
diff --git a/Resources/Prototypes/SS220/Damage/modifier_sets.yml b/Resources/Prototypes/SS220/Damage/modifier_sets.yml
index 57c99d894b22..8de953e48a6c 100644
--- a/Resources/Prototypes/SS220/Damage/modifier_sets.yml
+++ b/Resources/Prototypes/SS220/Damage/modifier_sets.yml
@@ -11,14 +11,14 @@
   id: Tajaran
   coefficients:
     Cold: 0.8
-    Heat: 1.3 # so about heat, we make them receive more heat cause tajaran Secs > any other species secs
+    Heat: 1.15 # so about heat, we make them receive more heat cause tajaran Secs > any other species secs #SS220 TTK update
 
 - type: damageModifierSet
   id: TomatoKiller
   coefficients:
     Blunt: 1
     Slash: 1.3
-    Piercing: 1.2
+    Piercing: 0.8
     Shock: 1.3
     Cold: 1.5
     Poison: 0.6
@@ -90,7 +90,8 @@
   coefficients:
     Blunt: 1
     Slash: 1.2
-    Piercing: 0.6
+    Piercing: 0.5
+    Heat: 0.5
     Shock: 1
     Cold: 1
     Poison: 1
@@ -102,7 +103,8 @@
   coefficients:
     Blunt: 1
     Slash: 1
-    Piercing: 0.7
+    Piercing: 0.6
+    Heat: 0.6
     Shock: 1.0
     Cold: 1
     Poison: 1