There is A LOT of RNGdeaths in this trial when you combine one or two minibosses with the mainboss. We managed to kill Mainboss + Llothis, with luck tho and so many deaths that could NOT be avoided.
Llothis NOXIOUS GAS + Olms STORMS OF THE HEAVENS is an unavoidable death mechanic because:
Noxious Gas= has to be blocked to survive
Storms of the Heavens= has to be avoided by walking/dodgeing
Now if BOTH mechanics happen at the same time there is only ONE OPTION you are left with and thats DEATH. Because how are you supposed to block the poison AND avoid the shock damage?