Also some possible Snowgrave spoilers: there are videos experimenting to see what enemies can be Frozen and what can't, and, well, pic related can happen.

Bosses: https://www.youtube.com/watch?v=fKgY7LaqX8w

Darkners: https://www.youtube.com/watch?v=qxATfiB7sqI - the WaterCooler actually takes 2 Snowgraves, do NOT fuck with it