Tanking Question on Ignis

[Amenti]

How much hp does the tank you used have were they war, dk, pally, or druid. We only did about 5 or 6 attempts on him but didn't have time to change up the tanking. We did Chess event V2.0 lol and razor scale pretty easily.

But having him hit the tank for 43,450 when the tank has around 43k and its its only 20 seconds into the fight doesn't seem to me like any boss fight i have ever done even 3drakes.