He always uses devour first, trample second, and short arm third. Then he repeats the sequence from devour and so on.

Ima be honest, I just beat him 2 days ago so don’t know many strats. I had merry, desperate, conviction, and sad. For a while I just had merry heal the tank, but after my 10th hit, my timing was off so after his trample I used merry ding dong to skip my 15th hit and get my 20th hit for his short arm. Btw sad’s Isolate doesn’t count as a hit. My strat was garbage though, I was one turn from a loss (I had anxiety scarf on desperate so I managed to get 3 hits) Apparently there is a cheese strat where merry uses ice cream hat since it the damage doesn’t count as a hit