I am sure it is the usual suspects but with a high degree of variance based on the lifter's preference and what they have access to. It is not like there is a magic combination. For this situation though you would have to assume it is throwing the kitchen sink at it to try to peak for that specific moment.
I suspect tge kitchen sink as well, his face bloated in a few days plus a regular cycle must already be on the heavy side for Thor. Read about totally insane competition cocktails from Dan Green as well as very conservative possibly year round cycles from Malanichev ( like 500mg test and some GH). I can look up the info if anyone interested, but dunno how reliable it is. Reading fighters need to stick to light cycles, in order to preserve cardio, not an issue with powerlifters obviously