Guul Draz Specter

Flying

Whenever this creature deals damage to an opponent, that player discards a card at random.

Flying, haste

Whenever this creature deals combat damage to a player, that player discards a card.

Flying

Hellbent — Whenever this creature deals combat damage to a player, if you have no cards in hand, that player discards a card at random.

Flying

Whenever this creature deals damage to a player, that player discards a card.

Flying

Wither (This deals damage to creatures in the form of -1/-1 counters.)

Whenever this creature deals combat damage to a player, that player discards that many cards.

Horsemanship (This creature can't be blocked except by creatures with horsemanship.)

Whenever this creature deals damage to an opponent, that player discards a card.