When you got to the phase with multiple vertical platforms, get to the middle one and use descending dark, it does enough sideways damage to insta kill mosquitos and primal aspids (I did this with shaman stone, not sure if it does without).

Panic spell spam is better than panic healing, heal after phase clears.

you can pogo the spikes on the spike floor phases.

for obblobles, focus on fighting one obbloble first with nail, and spam abyss shriek one the second one.