Iliad, Remorseless Occultist

Deathtouch, ward—Discard a card.

Horrors and Nightmares you control get +1/+1 and have undying.

Creatures can't attack you or planeswalkers you control unless their controller discards a card. If a player doesn't discard a card this way, they mill a card.

Discard a card, {t}: Create a Cursed Role token attached to up to one target create an opponent controls.