Okay, so the short win isn't all that difficult, but I had fun nonetheless.
Teatime (pronounce Te-ah-tim-eh

I was a bit sad that precognition doesn't show the next rounds opponents - that would have been very cool.
Closest call was when a minotaur confused me, then walked on the fireblast trap in the middle and set me on fire. I came to with 38 life, burning for 40 per round, with damage shunt and body reversion (one round!) both on cooldown. I did have temporal reprieve, and now I notice that it's instantaneous, but at that moment I though it would take a round, a round I did not have. After a bit of looking I noticed that repulsion shield was available, and all was well...

First arena winner this version, so I got to fight the standard Master of the Arena. That was mostly me putting distance between us and blasting him with turn back time, rethread and dust to dust. Sadly I didn't quite manage to kill him off with echoes from the past, I had to hit him with one last turn back time at the end.
Anyway, the arena rocks.