Sultai, Grave Dweller

Whenever Sultai, Grave Dweller enters the battlefield, put 3 2/2 black zombie creature tokens with deathtouch onto the battlefield.
Hexproof, Deathtouch, Cannot be countered
{t}: Discard X cards: Draw X cards.
Whenever a Zombie creature you control deals combat damage to a player, you may draw a card and you lose one life.