So when doing the event you are limited to the # you can kill if you kill 1 extra you heal the heart and can no longer get him to 10% and fail the event. Yet the event requires you to keep mobs on agro. Also the spawn of mobs is random I recall at least one time when we only few spec spawn and having to kill Drolv and skele we hit the enrage timer. it feel like this is more of a Mistake then a Fix and is going to cause more issue with the event becoming unbeatable than anything. Well guess we get T3 to fill our time If it not broken Tomorrow.