Warmaisach
Didn't he already die a bunch in one of his previous trials? sure it was a long time ago for him, but he should be able to recall those experiences for use now
Keep in mind that the concept of Death is likely at minimum a level four concept to him. The difficulty in comprehending this is already insanely hard at his level as well as the fact that he’s in a situation where him dying could cause him to lose something, points. This means that he is in a different state of mind not too dissimilar to tempering and he has a mind much more powerful compared to every other time he’s died in the past. On top of this, he actually has knowledge about death concepts in comparison to previous trials where he didn’t, and he is actively trying to comprehend death itself instead of just dying and passively understanding death a little bit. So it’s a whole different scenario compared to both his previous trials and training.