Will of Shahram and Holy Strength should have separate aura slot per …

…caster.

https://www.youtube.com/watch?v=rakfLOlB-xc

sql/migrations/20231205020742_world.sql

@@ -0,0 +1,21 @@
+DROP PROCEDURE IF EXISTS add_migration;
+delimiter ??
+CREATE PROCEDURE `add_migration`()
+BEGIN
+DECLARE v INT DEFAULT 1;
+SET v = (SELECT COUNT(*) FROM `migrations` WHERE `id`='20231205020742');
+IF v=0 THEN
+INSERT INTO `migrations` VALUES ('20231205020742');
+-- Add your query below.
+
+
+-- Will of Shahram and Holy Strength should have separate aura slot per caster.
+UPDATE `spell_template` SET `customFlags` = (`customFlags` | 4096) WHERE `entry` IN (16598, 20007);
+
+
+-- End of migration.
+END IF;
+END??
+delimiter ; 
+CALL add_migration();
+DROP PROCEDURE IF EXISTS add_migration;

src/game/Objects/Unit.cpp

@@ -3235,6 +3235,10 @@ bool Unit::AddSpellAuraHolder(SpellAuraHolder* holder)
  // Skip channeled spells (Arcane missile, ...) so two casters can channel at the same time
  if (aurSpellInfo->IsChanneledSpell())
  continue;
+
+ if (aurSpellInfo->Custom & SPELL_CUSTOM_SEPARATE_AURA_PER_CASTER)
+ continue;
+
  bool stop = false;
 
  for (int32 i = 0; i < MAX_EFFECT_INDEX && !stop; ++i)
@@ -3243,10 +3247,6 @@ bool Unit::AddSpellAuraHolder(SpellAuraHolder* holder)
  if (!foundHolder->m_auras[i] || !holder->m_auras[i])
  continue;
 
- // Croise
- if (aurSpellInfo->Id == 20007)
- break;
-
  // m_auraname can be modified to SPELL_AURA_NONE for area auras, use original
  AuraType aurNameReal = AuraType(aurSpellInfo->EffectApplyAuraName[i]);
 

src/game/Spells/SpellDefines.h

@@ -886,6 +886,7 @@ enum SpellAttributesCustom
  SPELL_CUSTOM_AURA_APPLY_BREAKS_STEALTH = 0x200, // Stealth is removed when this aura is applied
  SPELL_CUSTOM_NOT_REMOVED_ON_EVADE = 0x400, // Aura persists after creature evades
  SPELL_CUSTOM_SEND_CHANNEL_VISUAL = 0x800, // Will periodically send the channeling spell visual kit
+ SPELL_CUSTOM_SEPARATE_AURA_PER_CASTER = 0x1000, // Each caster has his own aura slot, instead of replacing others
 };
 
 // Custom flags assigned by the core based on spell template data