Grex, Punisher of Grief

Menace
{3}{b}{r}: Creature tokens get -0/-1 until end of turn.
Whenever Grex, Punisher of Grief deals combat damage to a player, target player creates a 1/1 red demon creature token with, when this creature dies, it deals 1 damage to its controller. Whenever you are dealt damage by Grex, draw a card, then discard a card.