diff --git a/sql/updates/world/custom/custom_2018_07_22_01_world.sql b/sql/updates/world/custom/custom_2018_07_22_01_world.sql
new file mode 100644
index 00000000000..2870fda1244
--- /dev/null
+++ b/sql/updates/world/custom/custom_2018_07_22_01_world.sql
@@ -0,0 +1 @@
+DELETE FROM `spell_script_names` WHERE `ScriptName`= 'spell_dru_predatory_strikes';
diff --git a/src/server/game/Entities/Unit/Unit.cpp b/src/server/game/Entities/Unit/Unit.cpp
index a83e2919d77..e85e78bbef2 100644
--- a/src/server/game/Entities/Unit/Unit.cpp
+++ b/src/server/game/Entities/Unit/Unit.cpp
@@ -7140,24 +7140,6 @@ float Unit::GetUnitSpellCriticalChance(Unit* victim, SpellInfo const* spellProto
                                 if (AuraEffect const* aurEff = GetAuraEffect(56369, EFFECT_0))
                                     crit_chance += aurEff->GetAmount();
                         break;
-                    case SPELLFAMILY_DRUID:
-                        // Improved Faerie Fire
-                        if (victim->HasAuraState(AURA_STATE_FAERIE_FIRE))
-                            if (AuraEffect const* aurEff = GetDummyAuraEffect(SPELLFAMILY_DRUID, 109, 0))
-                                crit_chance += aurEff->GetAmount();
-
-                        // cumulative effect - don't break
-
-                        // Starfire
-                        if (spellProto->SpellFamilyFlags[0] & 0x4 && spellProto->SpellIconID == 1485)
-                        {
-                            // Improved Insect Swarm
-                            if (AuraEffect const* aurEff = GetDummyAuraEffect(SPELLFAMILY_DRUID, 1771, 0))
-                                if (victim->GetAuraEffect(SPELL_AURA_PERIODIC_DAMAGE, SPELLFAMILY_DRUID, 0x00000002, 0, 0))
-                                    crit_chance += aurEff->GetAmount();
-                           break;
-                        }
-                        break;
                     case SPELLFAMILY_ROGUE:
                         // Shiv-applied poisons can't crit
                         if (FindCurrentSpellBySpellId(5938))
@@ -7210,6 +7192,13 @@ float Unit::GetUnitSpellCriticalChance(Unit* victim, SpellInfo const* spellProto
                                 crit_chance += rendAndTear->GetAmount();
                             break;
                         }
+
+                        // Predatory Strikes
+                        if (spellProto->SpellFamilyFlags[0] & 0x00010000)
+                            if (AuraEffect const* critAuraEff = GetDummyAuraEffect(SPELLFAMILY_DRUID, 1563, EFFECT_0))
+                                if (AuraEffect const* healthAuraEff = GetDummyAuraEffect(SPELLFAMILY_DRUID, 1563, EFFECT_1))
+                                    if (victim->GetHealthPct() >= healthAuraEff->GetAmount())
+                                        crit_chance += critAuraEff->GetAmount();
                         break;
                 }
             }
diff --git a/src/server/scripts/Spells/spell_druid.cpp b/src/server/scripts/Spells/spell_druid.cpp
index 2993e9a6483..aa94c34ab8e 100644
--- a/src/server/scripts/Spells/spell_druid.cpp
+++ b/src/server/scripts/Spells/spell_druid.cpp
@@ -815,35 +815,6 @@ class spell_dru_living_seed_proc : public SpellScriptLoader
         }
 };
 
-// -16972 - Predatory Strikes
-class spell_dru_predatory_strikes : public SpellScriptLoader
-{
-    public:
-        spell_dru_predatory_strikes() : SpellScriptLoader("spell_dru_predatory_strikes") { }
-
-        class spell_dru_predatory_strikes_AuraScript : public AuraScript
-        {
-            PrepareAuraScript(spell_dru_predatory_strikes_AuraScript);
-
-            void UpdateAmount(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/)
-            {
-                if (Player* target = GetTarget()->ToPlayer())
-                    target->UpdateAttackPowerAndDamage();
-            }
-
-            void Register() override
-            {
-                AfterEffectApply += AuraEffectApplyFn(spell_dru_predatory_strikes_AuraScript::UpdateAmount, EFFECT_ALL, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_CHANGE_AMOUNT_MASK);
-                AfterEffectRemove += AuraEffectRemoveFn(spell_dru_predatory_strikes_AuraScript::UpdateAmount, EFFECT_ALL, SPELL_AURA_DUMMY, AURA_EFFECT_HANDLE_CHANGE_AMOUNT_MASK);
-            }
-        };
-
-        AuraScript* GetAuraScript() const override
-        {
-            return new spell_dru_predatory_strikes_AuraScript();
-        }
-};
-
 // 1079 - Rip
 class spell_dru_rip : public SpellScriptLoader
 {
@@ -1878,7 +1849,6 @@ void AddSC_druid_spell_scripts()
     new spell_dru_living_seed();
     new spell_dru_living_seed_proc();
     RegisterAuraScript(spell_dru_moonfire);
-    new spell_dru_predatory_strikes();
     new spell_dru_rejuvenation();
     new spell_dru_rip();
     RegisterAuraScript(spell_dru_savage_defense);