Talk:Cataclysm/@comment-24173323-20180620135234

Based on my testing here https://youtu.be/UZINAsSiuOQ (skip to 0:43 for this) I found that Cataclysm will deal 15% of an ancient healers current HP when an un-modded Cataclysm expires naturally. The +50% blast damage on ancient healer hp would mean it actually deals 10% of the current hp in cataclysm.

Assuming the 100% bonus damage is not affected by modded range or duration, then the HP multiplier factor would be 5% but being doubled after a full duration to 10%. It seems like the actual formula would be more complicated as it would involve a time factor added, so I simply stated the formula using an un-modded cataclysm expiring after a full duration.

If someone else wishes to do more testing feel free. But I can guarantee the damage is based off of current hp and not max hp.