Black Knight

Artifact and enchantment spells your opponents cast cost 2 more to cast. Sacrifice this enchantment: Destroy target artifact or enchantment.

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Buyback—Discard two cards. (You may discard two cards in addition to any other costs as you cast this spell. If you do, put this card into your hand as it resolves.) Counter target spell.

Spend only black mana on X. Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.

Defender When this creature enters, draw a card.

This creature enters with two +1/+1 counters on it. 2, Remove a +1/+1 counter from this creature: Put a +1/+1 counter on target creature. Remove a +1/+1 counter from this creature: You gain 2 life.

T: This creature deals 1 damage to any target and 1 damage to you.

Sacrifice this creature: It deals 1 damage to any target.