diff --git a/data/sql/updates/pending_db_world/rev_1786222003126161600.sql b/data/sql/updates/pending_db_world/rev_1786222003126161600.sql
new file mode 100644
index 000000000..a76813bb0
--- /dev/null
+++ b/data/sql/updates/pending_db_world/rev_1786222003126161600.sql
@@ -0,0 +1,28 @@
+-- Yogg-Saron brain room Influence Tentacles (sniffed positions), summoned per illusion by the brain
+DELETE FROM `creature_summon_groups` WHERE `summonerId` = 33890 AND `summonerType` = 0 AND `groupId` IN (1, 2, 3);
+INSERT INTO `creature_summon_groups` (`summonerId`, `summonerType`, `groupId`, `entry`, `position_x`, `position_y`, `position_z`, `orientation`, `summonType`, `summonTime`, `Comment`) VALUES
+(33890, 0, 1, 33943, 2069.298, -43.5317, 239.8006, 0.47124, 8, 0, 'Brain of Yogg-Saron - Chamber Illusion - Influence Tentacle'),
+(33890, 0, 1, 33943, 2069.4792, -5.6997, 239.8058, 5.42797, 8, 0, 'Brain of Yogg-Saron - Chamber Illusion - Influence Tentacle'),
+(33890, 0, 1, 33943, 2113.3298, -65.7101, 239.8058, 1.78024, 8, 0, 'Brain of Yogg-Saron - Chamber Illusion - Influence Tentacle'),
+(33890, 0, 1, 33943, 2139.8298, -50.2865, 239.8058, 2.46091, 8, 0, 'Brain of Yogg-Saron - Chamber Illusion - Influence Tentacle'),
+(33890, 0, 1, 33943, 2136.6406, -1.9965, 239.8058, 3.83972, 8, 0, 'Brain of Yogg-Saron - Chamber Illusion - Influence Tentacle'),
+(33890, 0, 1, 33943, 2116.9307, 11.375, 239.8058, 4.41568, 8, 0, 'Brain of Yogg-Saron - Chamber Illusion - Influence Tentacle'),
+(33890, 0, 1, 33943, 2146.2395, -34.4045, 239.8058, 3.01942, 8, 0, 'Brain of Yogg-Saron - Chamber Illusion - Influence Tentacle'),
+(33890, 0, 1, 33943, 2146.8801, -17.0313, 239.8058, 3.35103, 8, 0, 'Brain of Yogg-Saron - Chamber Illusion - Influence Tentacle'),
+(33890, 0, 2, 33943, 1897.3455, -106.6076, 240.1444, 4.93928, 8, 0, 'Brain of Yogg-Saron - Icecrown Illusion - Influence Tentacle'),
+(33890, 0, 2, 33943, 1902.132, -111.3594, 240.0698, 4.85202, 8, 0, 'Brain of Yogg-Saron - Icecrown Illusion - Influence Tentacle'),
+(33890, 0, 2, 33943, 1905.3264, -104.7865, 240.0523, 4.76475, 8, 0, 'Brain of Yogg-Saron - Icecrown Illusion - Influence Tentacle'),
+(33890, 0, 2, 33943, 1912.1285, -136.934, 240.073, 4.18879, 8, 0, 'Brain of Yogg-Saron - Icecrown Illusion - Influence Tentacle'),
+(33890, 0, 2, 33943, 1917.5591, -135.7448, 240.073, 4.18879, 8, 0, 'Brain of Yogg-Saron - Icecrown Illusion - Influence Tentacle'),
+(33890, 0, 2, 33943, 1919.125, -140.9566, 240.073, 3.97935, 8, 0, 'Brain of Yogg-Saron - Icecrown Illusion - Influence Tentacle'),
+(33890, 0, 2, 33943, 1948.4688, -136.2951, 240.0707, 3.4383, 8, 0, 'Brain of Yogg-Saron - Icecrown Illusion - Influence Tentacle'),
+(33890, 0, 2, 33943, 1952.9653, -130.5295, 240.1347, 3.80482, 8, 0, 'Brain of Yogg-Saron - Icecrown Illusion - Influence Tentacle'),
+(33890, 0, 2, 33943, 1956.4445, -138.4028, 240.1078, 3.36849, 8, 0, 'Brain of Yogg-Saron - Icecrown Illusion - Influence Tentacle'),
+(33890, 0, 3, 33943, 1897.3435, 64.3142, 239.7495, 0.13963, 8, 0, 'Brain of Yogg-Saron - Stormwind Illusion - Influence Tentacle'),
+(33890, 0, 3, 33943, 1903.3931, 86.6029, 239.7495, 5.61996, 8, 0, 'Brain of Yogg-Saron - Stormwind Illusion - Influence Tentacle'),
+(33890, 0, 3, 33943, 1908.993, 44.2666, 239.7495, 0.92502, 8, 0, 'Brain of Yogg-Saron - Stormwind Illusion - Influence Tentacle'),
+(33890, 0, 3, 33943, 1923.3416, 98.0123, 239.7495, 4.83456, 8, 0, 'Brain of Yogg-Saron - Stormwind Illusion - Influence Tentacle'),
+(33890, 0, 3, 33943, 1931.1404, 38.4695, 239.7495, 1.71042, 8, 0, 'Brain of Yogg-Saron - Stormwind Illusion - Influence Tentacle'),
+(33890, 0, 3, 33943, 1945.4417, 92.1795, 239.7495, 4.04916, 8, 0, 'Brain of Yogg-Saron - Stormwind Illusion - Influence Tentacle'),
+(33890, 0, 3, 33943, 1951.0402, 49.8888, 239.7495, 2.49582, 8, 0, 'Brain of Yogg-Saron - Stormwind Illusion - Influence Tentacle'),
+(33890, 0, 3, 33943, 1956.5028, 72.1946, 239.7495, 3.28122, 8, 0, 'Brain of Yogg-Saron - Stormwind Illusion - Influence Tentacle');
diff --git a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yoggsaron.cpp b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yoggsaron.cpp
index 229e19df2..0c6a3e631 100644
--- a/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yoggsaron.cpp
+++ b/src/server/scripts/Northrend/Ulduar/Ulduar/boss_yoggsaron.cpp
@@ -268,6 +268,11 @@ enum Misc
     ACTION_ILLUSION_ICECROWN            = 2,
     ACTION_ILLUSION_STORMWIND           = 3,
 
+    // creature_summon_groups for the brain (33890)
+    SUMMON_GROUP_CHAMBER_TENTACLES      = 1,
+    SUMMON_GROUP_ICECROWN_TENTACLES     = 2,
+    SUMMON_GROUP_STORMWIND_TENTACLES    = 3,
+
     // ACTION_SARA_UPDATE_SUMMON_KEEPERS = 4, // defined in ulduar.h
 
     EVENT_PHASE_ONE                     = 1,
@@ -1326,6 +1331,7 @@ struct boss_yoggsaron_brain : public NullCreatureAI
     {
         me->SetDisableGravity(true);
         _tentacleCount = 0;
+        _tentacleTotal = 0;
         _activeIllusion = 0;
         _induceTimer = 0;
         _brainDamaged = false;
@@ -1334,6 +1340,7 @@ struct boss_yoggsaron_brain : public NullCreatureAI
 
     bool _brainDamaged;
     uint8 _tentacleCount;
+    uint8 _tentacleTotal;
     uint8 _activeIllusion;
     uint32 _induceTimer;
     SummonList summons;
@@ -1343,6 +1350,8 @@ struct boss_yoggsaron_brain : public NullCreatureAI
     {
         if (cr->GetEntry() == NPC_INFLUENCE_TENTACLE)
         {
+            ++_tentacleTotal;
+
             // Dragons Illusion
             if (cr->GetPositionX() > 2000.0f && cr->GetPositionX() < 2150.0f)
                 cr->UpdateEntry(urand(NPC_CONSORT_FIRST, NPC_CONSORT_LAST));
@@ -1364,13 +1373,7 @@ struct boss_yoggsaron_brain : public NullCreatureAI
 
     void PrepareChamberIllusion()
     {
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 2126.13f, -65.488f, 239.721f, 1.99171f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 2141.05f, -50.5146f, 239.751f, 2.72998f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 2148.83f, -23.9568f, 239.721f, 3.04807f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 2064.39f, -42.0691f, 239.719f, 0.0949586f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 2064.29f, -7.13128f, 239.756f, 5.96974f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 2117.31f, 14.897f, 239.731f, 4.32041f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 2136.7f, 2.43262f, 239.72f, 3.90023f);
+        me->SummonCreatureGroup(SUMMON_GROUP_CHAMBER_TENTACLES);
 
         // Laughing Skulls
         if (urand(0, 1))
@@ -1413,13 +1416,7 @@ struct boss_yoggsaron_brain : public NullCreatureAI
             me->SummonCreature(NPC_LAUGHING_SKULL, 1921, -158, 240, 0);
 
         // Influence
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1958.29f, -128.65f, 239.99f, 3.61293f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1957.78f, -134.368f, 239.99f, 3.35375f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1953.04f, -137.843f, 239.99f, 3.55796f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1900.31f, -93.5241f, 239.99f, 4.50043f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1895.03f, -98.0773f, 239.99f, 4.88135f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1895.19f, -104.587f, 239.99f, 5.02271f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1923.31f, -125.98f, 240, 4.2f);
+        me->SummonCreatureGroup(SUMMON_GROUP_ICECROWN_TENTACLES);
 
         // Others
         me->SummonCreature(NPC_LICH_KING, 1906.98f, -153, 240, 4.2f);
@@ -1444,13 +1441,7 @@ struct boss_yoggsaron_brain : public NullCreatureAI
         me->SummonCreature(NPC_LAUGHING_SKULL, 1963.68f, 89.7549f, 239.667f, 3.70571f);
 
         // Influence
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1931.41f, 39.0711f, 239.66f, 1.82467f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1908.67f, 45.5867f, 239.666f, 0.72119f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1897.68f, 66.1274f, 239.666f, 6.27395f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1950.73f, 49.3446f, 239.666f, 2.63756f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1923.16f, 97.5586f, 239.666f, 4.74635f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1956.16f, 72.1403f, 239.666f, 3.19518f);
-        me->SummonCreature(NPC_INFLUENCE_TENTACLE, 1944.81f, 92.3154f, 239.666f, 4.03556f);
+        me->SummonCreatureGroup(SUMMON_GROUP_STORMWIND_TENTACLES);
 
         // Others
         me->SummonCreature(NPC_GARONA, 1928.58f, 65.64f, 242.37f, 2.1f);
@@ -1477,7 +1468,7 @@ struct boss_yoggsaron_brain : public NullCreatureAI
         else if (param == ACTION_INFLUENCE_TENTACLE_DIED)
         {
             _tentacleCount++;
-            if (_tentacleCount >= 7 /*TENTACLES COUNT*/)
+            if (_tentacleCount >= _tentacleTotal)
             {
                 // Stun
                 if (me->GetInstanceScript())
@@ -1495,6 +1486,7 @@ struct boss_yoggsaron_brain : public NullCreatureAI
             return;
 
         summons.DespawnAll();
+        _tentacleTotal = 0;
         switch (param)
         {
             case ACTION_ILLUSION_STORMWIND:
@@ -1529,7 +1521,7 @@ struct boss_yoggsaron_brain : public NullCreatureAI
 
     void DamageTaken(Unit* who, uint32& damage, DamageEffectType, SpellSchoolMask) override
     {
-        if (_tentacleCount < 7) // if all tentacles aren't killed
+        if (!_tentacleTotal || _tentacleCount < _tentacleTotal) // if all tentacles aren't killed
         {
             damage = 0;
             if (who)