Rogue Class

(Gain the next level as a sorcery to add its ability.)

Whenever a creature you control deals combat damage to a player, exile the top card of that player's library face down. You may look at it for as long as it remains exiled.

1UB: Level 2 — Creatures you control have menace.

2UB: Level 3 — You may play cards exiled with Rogue Class, and you may spend mana as though it were mana of any color to cast those spells.