Shadowseer and other psychic powers got leaked... depending the cost of shadowseer they can be really strong.

First thought is to combo Mask of Secrets with Arch angels of pain and shadow specters.

Laugh of sorrows or psychic shriek on 3D6 drop the lowest with -4 is rough.

Getting hit by Torment launchers and having to take leadership checks at -4 is going to be rough.

Mirror of minds has a high chance of getting you slay the warlord if it goes off.