Abandon Hope

As an additional cost to cast this spell, discard X cards.
Look at target opponent's hand and choose X cards from it. That player discards those cards.

Crypt Rats

{X}: Crypt Rats deals X damage to each creature and each player. Spend only black mana on X.

Chittering Rats

When Chittering Rats enters, target opponent puts a card from their hand on top of their library.

Adarkar Sentinel

{1}: Adarkar Sentinel gets +0/+1 until end of turn.

Bog Rats

Feast of the Unicorn

Enchant creature
Enchanted creature gets +4/+0.

Abattoir Ghoul

First strike
Whenever a creature dealt damage by Abattoir Ghoul this turn dies, you gain life equal to that creature's toughness.

Bala Ged Scorpion

When Bala Ged Scorpion enters, you may destroy target creature with power 1 or less.

Abyssal Specter

Flying
Whenever Abyssal Specter deals damage to a player, that player discards a card.