Apart from the difficulty in getting 5 stacks in the gardens of hope, the Silver spire is quite a large area fill with hard hitting monsters. I've been lucky both times he's been close to the entrance so I can just kite him back to near the entrance so I don't have to go so far when I die.
Does anyone have any specific tips for killing him? He's faster then me at 24% movespeed and his healing curse hurts a lot. And to be honest its quite hard to see his animations on the background. Are there any strategies to make him any easier?