diff --git a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_black_knight.cpp b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_black_knight.cpp
index 4ba21b98..c870ab42 100644
--- a/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_black_knight.cpp
+++ b/src/server/scripts/Northrend/CrusadersColiseum/TrialOfTheChampion/boss_black_knight.cpp
@@ -292,7 +292,7 @@ class boss_black_knight : public CreatureScript
                     if (uiDeathBiteTimer <= diff)
                     {
                         DoCastAOE(SPELL_DEATH_BITE);
-                        uiDeathBiteTimer = urand (1000, 2000);
+                        uiDeathBiteTimer = urand (2000, 4000);
                     } else uiDeathBiteTimer -= diff;
                     if (uiMarkedDeathTimer <= diff)
                     {
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_deathbringer_saurfang.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_deathbringer_saurfang.cpp
index efb8fcae..57ff4acd 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_deathbringer_saurfang.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_deathbringer_saurfang.cpp
@@ -255,6 +255,7 @@ class boss_deathbringer_saurfang : public CreatureScript
             void Reset()
             {
                 _Reset();
+				me->SetReactState(REACT_DEFENSIVE);
                 events.SetPhase(PHASE_COMBAT);
                 _frenzied = false;
                 _dead = false;
@@ -452,8 +453,6 @@ class boss_deathbringer_saurfang : public CreatureScript
                             events.SetPhase(PHASE_COMBAT);
                             _introDone = true;
                             me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_IMMUNE_TO_PC);
-                            me->SetReactState(REACT_AGGRESSIVE);	
-                            me->SetInCombatWithZone();
                             break;
                         case EVENT_SUMMON_BLOOD_BEAST:
                             for (uint32 i10 = 0; i10 < 2; ++i10)
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp
index 48fe89da..ce87d0b7 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_festergut.cpp
@@ -90,6 +90,7 @@ class boss_festergut : public CreatureScript
             void Reset()
             {
                 _Reset();
+				me->SetReactState(REACT_DEFENSIVE);
                 events.ScheduleEvent(EVENT_BERSERK, 300000);
                 events.ScheduleEvent(EVENT_INHALE_BLIGHT, urand(25000, 30000));
                 events.ScheduleEvent(EVENT_GAS_SPORE, urand(20000, 25000));
@@ -160,15 +161,6 @@ class boss_festergut : public CreatureScript
                 if (spell->Id == PUNGENT_BLIGHT_HELPER)
                     target->RemoveAurasDueToSpell(INOCULATED_HELPER);
             }
-			
-            void MoveInLineOfSight(Unit* who)	
-            {	
-                if (me->IsWithinDistInMap(who, 20.0f))	
-                {	
-                    me->SetReactState(REACT_AGGRESSIVE);	
-                    me->SetInCombatWithZone();	
-                }	
-            }
 
             void UpdateAI(uint32 const diff)
             {
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
index a77c298e..a67e1bb1 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_lord_marrowgar.cpp
@@ -145,11 +145,6 @@ class boss_lord_marrowgar : public CreatureScript
                     Talk(SAY_ENTER_ZONE);
                     _introDone = true;
                 }
-                else if (me->IsWithinDistInMap(who, 20.0f))	
-                {	
-                    me->SetReactState(REACT_AGGRESSIVE);	
-                    me->SetInCombatWithZone();	
-                }
             }
 
             void UpdateAI(uint32 const diff)
@@ -323,7 +318,7 @@ class npc_coldflame : public CreatureScript
                     }
 
                     me->SetOrientation(owner->GetAngle(target));
-                    owner->GetNearPosition(pos, owner->GetObjectSize() / 20.0f, 0.0f);
+                    owner->GetNearPosition(pos, owner->GetObjectSize() / 2.0f, 0.0f);
                 }
 
                 me->NearTeleportTo(pos.GetPositionX(), pos.GetPositionY(), me->GetPositionZ(), me->GetOrientation());
@@ -572,12 +567,7 @@ class spell_marrowgar_bone_storm : public SpellScriptLoader
 
             void RecalculateDamage()
             {
-                if (Unit* caster = GetCaster())	
-                {	
-                    const float distance = GetHitUnit()->GetExactDist2d(caster);	
-                    const int32 damage   = GetHitDamage();	
-                    SetHitDamage(int32(damage - (damage * distance / (distance + caster->GetObjectSize() / 2))));	
-                }                
+				SetHitDamage(int32(GetHitDamage() / std::max(sqrtf(GetHitUnit()->GetExactDist2d(GetCaster())), 1.0f)));
             }
 
             void Register()
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
index 6832d279..b2662b64 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
@@ -221,7 +221,7 @@ class boss_professor_putricide : public CreatureScript
                 summons.DespawnAll();
                 SetPhase(PHASE_COMBAT_1);
                 _experimentState = EXPERIMENT_STATE_OOZE;
-                me->SetReactState(REACT_AGGRESSIVE);
+                me->SetReactState(REACT_DEFENSIVE);
                 me->SetWalk(false);
                 if (me->GetMotionMaster()->GetCurrentMovementGeneratorType() == POINT_MOTION_TYPE)
                     me->GetMotionMaster()->MovementExpired();
diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp
index fbfa9475..1a006ccd 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_rotface.cpp
@@ -157,13 +157,9 @@ class boss_rotface : public CreatureScript
                     Talk(SAY_SLIME_SPRAY);
             }
 
-            void MoveInLineOfSight(Unit* who)
+            void MoveInLineOfSight(Unit* /*who*/)
             {
-                if (me->IsWithinDistInMap(who, 20.0f))	
-                {	
-                    me->SetReactState(REACT_AGGRESSIVE);	
-                    me->SetInCombatWithZone();	
-                }
+				// don't enter combat
             }
 
             void UpdateAI(const uint32 diff)