diff -r 359b5b7e64f5 src/game/SpellMgr.cpp
--- a/src/game/SpellMgr.cpp	Wed May 27 09:36:03 2015 -0400
+++ b/src/game/SpellMgr.cpp	Wed May 27 19:46:52 2015 +0200
@@ -2684,6 +2684,9 @@
         case 30298: // Tree Disguise
             spellInfo->InterruptFlags |= SPELL_INTERRUPT_FLAG_MOVEMENT;
             break;
+        case 30019:
+            spellInfo->EffectApplyAuraName[2] = SPELL_AURA_MOD_POSSESS;
+            break;
         default:
             break;
         }