diff --git a/src/server/game/Spells/Auras/SpellAuraEffects.cpp b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
index bc538e8ef..db686de6d 100644
--- a/src/server/game/Spells/Auras/SpellAuraEffects.cpp
+++ b/src/server/game/Spells/Auras/SpellAuraEffects.cpp
@@ -5943,7 +5943,11 @@ void AuraEffect::HandlePeriodicTriggerSpellAuraTick(Unit* target, Unit* caster)
                             return;
                         // Brood Affliction: Bronze
                         case 23170:
-                            triggerSpellId = 23171;
+                            // Only 10% chance of triggering spell
+                            if (roll_chance_f(10.f))
+                            {
+                                triggerSpellId = 23171;
+                            }
                             break;
                         // Restoration
                         case 24379:
diff --git a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_chromaggus.cpp b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_chromaggus.cpp
index f2e006014..414af4ee9 100644
--- a/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_chromaggus.cpp
+++ b/src/server/scripts/EasternKingdoms/BlackrockMountain/BlackwingLair/boss_chromaggus.cpp
@@ -247,12 +247,13 @@ public:
                             break;
                     case EVENT_AFFLICTION:
                         {
+                            uint32 afflictionSpellID = RAND(SPELL_BROODAF_BLUE, SPELL_BROODAF_BLACK, SPELL_BROODAF_RED, SPELL_BROODAF_BRONZE, SPELL_BROODAF_GREEN);
                             Map::PlayerList const& players = me->GetMap()->GetPlayers();
                             for (Map::PlayerList::const_iterator itr = players.begin(); itr != players.end(); ++itr)
                             {
                                 if (Player* player = itr->GetSource()->ToPlayer())
                                 {
-                                    DoCast(player, RAND(SPELL_BROODAF_BLUE, SPELL_BROODAF_BLACK, SPELL_BROODAF_RED, SPELL_BROODAF_BRONZE, SPELL_BROODAF_GREEN), true);
+                                    DoCast(player, afflictionSpellID, true);
 
                                         if (player->HasAura(SPELL_BROODAF_BLUE) &&
                                             player->HasAura(SPELL_BROODAF_BLACK) &&