diff --git a/sql/scriptdev2/scriptdev2.sql b/sql/scriptdev2/scriptdev2.sql
index 0342eb2f1f..0c29c672c3 100644
--- a/sql/scriptdev2/scriptdev2.sql
+++ b/sql/scriptdev2/scriptdev2.sql
@@ -1249,6 +1249,7 @@ UPDATE creature_template SET ScriptName='boss_laj' WHERE entry=17980;
 UPDATE creature_template SET ScriptName='boss_warp_splinter' WHERE entry=17977;
 UPDATE creature_template SET ScriptName='mob_warp_splinter_treant' WHERE entry=19949;
 UPDATE creature_template SET ScriptName='boss_thorngrin' WHERE entry IN(17978);
+UPDATE instance_template SET ScriptName='instance_botanica' WHERE map=553;
 
 /* THE ARCATRAZ */
 UPDATE instance_template SET ScriptName='instance_arcatraz' WHERE map=552;
diff --git a/src/game/AI/ScriptDevAI/scripts/outland/hellfire_citadel/shattered_halls/shattered_halls.cpp b/src/game/AI/ScriptDevAI/scripts/outland/hellfire_citadel/shattered_halls/shattered_halls.cpp
index 95e9b59c04..9927ac0948 100644
--- a/src/game/AI/ScriptDevAI/scripts/outland/hellfire_citadel/shattered_halls/shattered_halls.cpp
+++ b/src/game/AI/ScriptDevAI/scripts/outland/hellfire_citadel/shattered_halls/shattered_halls.cpp
@@ -32,18 +32,33 @@ instance_shattered_halls::instance_shattered_halls(Map* pMap) : ScriptedInstance
     m_team(0),
     m_executionStage(0),
     m_prisonersLeft(3),
-    m_legionnaireIntroTimer(1000),
     m_gauntletStopped(false)
 {
     Initialize();
 }
 
+enum SHHActions
+{
+    SHH_TRIGGER_LEGIONNAIRE,
+    SHH_ACTION_MAX,
+};
+
 void instance_shattered_halls::Initialize()
 {
     memset(&m_auiEncounter, 0, sizeof(m_auiEncounter));
     GauntletReset();
     instance->GetVariableManager().SetVariable(WORLD_STATE_LEGIONNAIRE_002, 0);
     instance->GetVariableManager().SetVariable(WORLD_STATE_LEGIONNAIRE_003, 0);
+
+    // Event got triggered on wotlk classic when player moved at
+    // Position: X: 69.95503 Y: 124.538864 Z: -13.209421 O: 1.5825446
+    auto posCheck = [](Unit const* unit) -> bool { return unit->GetPositionY() > 124.5f; };
+    auto successEvent = [&]()
+    {
+        // Trigger Legionnaire group 04 and 05
+        instance->GetVariableManager().SetVariable(WORLD_STATE_LEGIONNAIRE_003, 1);
+    };
+    AddInstanceEvent(SHH_TRIGGER_LEGIONNAIRE, posCheck, successEvent);
 }
 
 void instance_shattered_halls::OnPlayerEnter(Player* pPlayer)
@@ -388,25 +403,7 @@ void instance_shattered_halls::DoBeginArcherAttack(bool leftOrRight)
 
 void instance_shattered_halls::Update(uint32 diff)
 {
-    if (m_legionnaireIntroTimer)
-    {
-        if (m_legionnaireIntroTimer <= diff)
-        {
-            m_legionnaireIntroTimer = 1000;
-            for (const auto& data : instance->GetPlayers())
-            {
-                // Event got triggered on wotlk classic when player moved at
-                // Position: X: 69.95503 Y: 124.538864 Z: -13.209421 O: 1.5825446
-                if (data.getSource()->GetPositionY() > 124.5f)
-                {
-                    m_legionnaireIntroTimer = 0;                    
-                    // Trigger Legionnaire group 04 and 05
-                    instance->GetVariableManager().SetVariable(WORLD_STATE_LEGIONNAIRE_003, 1);
-                }
-            }            
-        }
-        else m_legionnaireIntroTimer -= diff;
-    }
+    UpdateTimers(diff);
 
     if (m_auiEncounter[TYPE_GAUNTLET] == IN_PROGRESS)
     {
@@ -551,6 +548,21 @@ void instance_shattered_halls::Update(uint32 diff)
         m_executionTimer -= diff;
 }
 
+void instance_shattered_halls::AddInstanceEvent(uint32 id, std::function<bool(Unit const*)> check, std::function<void()> successEvent)
+{
+    AddCustomAction(id, false, [instance = this->instance, check = check, successEvent = successEvent]()
+    {
+        for (const auto& data : instance->GetPlayers())
+        {
+            if (check(data.getSource()))
+            {
+                successEvent();
+                return;
+            }
+        }
+    });
+}
+
 void instance_shattered_halls::FailGauntlet()
 {
     // If success despawn all, else respawn permanents
diff --git a/src/game/AI/ScriptDevAI/scripts/outland/hellfire_citadel/shattered_halls/shattered_halls.h b/src/game/AI/ScriptDevAI/scripts/outland/hellfire_citadel/shattered_halls/shattered_halls.h
index d368ad1d25..b322b3c970 100644
--- a/src/game/AI/ScriptDevAI/scripts/outland/hellfire_citadel/shattered_halls/shattered_halls.h
+++ b/src/game/AI/ScriptDevAI/scripts/outland/hellfire_citadel/shattered_halls/shattered_halls.h
@@ -6,6 +6,7 @@
 #define DEF_SHATTERED_H
 
 #include "World/WorldStateDefines.h"
+#include "AI/ScriptDevAI/base/TimerAI.h"
 
 enum
 {
@@ -121,7 +122,7 @@ static SpawnLocation aSoldiersLocs[] =
     {NPC_OFFICER_ALLIANCE,   NPC_OFFICER_HORDE,   138.241f, -84.198f, 1.907f, 0.055f}
 };
 
-class instance_shattered_halls : public ScriptedInstance
+class instance_shattered_halls : public ScriptedInstance, public TimerManager
 {
     public:
         instance_shattered_halls(Map* map);
@@ -158,6 +159,8 @@ class instance_shattered_halls : public ScriptedInstance
 
         void Update(const uint32 diff) override;
 
+        void AddInstanceEvent(uint32 id, std::function<bool(Unit const*)> check, std::function<void()> successEvent);
+
     private:
         void DoCastGroupDebuff(uint32 spellId);
         void FailGauntlet();
@@ -171,7 +174,6 @@ class instance_shattered_halls : public ScriptedInstance
         uint32 m_team;
         uint8 m_executionStage;
         uint8 m_prisonersLeft;
-        uint32 m_legionnaireIntroTimer;
 
         std::vector<uint32> m_gauntletPermanentGuids;
         GuidVector m_gauntletTemporaryGuids;
diff --git a/src/game/AI/ScriptDevAI/system/ScriptLoader.cpp b/src/game/AI/ScriptDevAI/system/ScriptLoader.cpp
index 568bb4cfe3..e4381c36e8 100644
--- a/src/game/AI/ScriptDevAI/system/ScriptLoader.cpp
+++ b/src/game/AI/ScriptDevAI/system/ScriptLoader.cpp
@@ -332,6 +332,7 @@ extern void AddSC_boss_warbringer_omrogg();
 extern void AddSC_boss_warchief_kargath_bladefist();
 extern void AddSC_shattered_halls();
 extern void AddSC_instance_shattered_halls();
+extern void AddSC_instance_botanica();
 extern void AddSC_arcatraz();                               // TK, arcatraz
 extern void AddSC_boss_dalliah();
 extern void AddSC_boss_harbinger_skyriss();
@@ -696,6 +697,7 @@ void AddScripts()
     AddSC_boss_warchief_kargath_bladefist();
     AddSC_shattered_halls();
     AddSC_instance_shattered_halls();
+    AddSC_instance_botanica();
     AddSC_arcatraz();                                       // TK, arcatraz
     AddSC_boss_dalliah();
     AddSC_boss_harbinger_skyriss();