I'm not sure if this has been brought up before but I've noticed that possession does NOT work on monsters that use an ability where the target is "Self"
Every time I possess him in battle, he simply uses the Everest or Cho Oyu abilities to avoid the possession. I believe he should be using the Everest or Cho Oyu abilities on a random enemy instead but he does not. He uses "self" abilities only on himself, effectively giving himself a 50% possession immunity.
Same with FIghtreer
If he uses his Bois Dentelle ability when confused, he effectively nullifies the possession because like Ouros, the "Self" abilities are immune to possession.
There are probably other monsters with the "Self" target as well that are immune to possession when using these abilities and I just haven't noticed it, yet.
So is this intended or a bug? Anyone else notice this?