Mary O'Kill [Unstable] Moag (A source with wither deals

(A source with wither deals damage to creatures in the form of -1/-1 counters

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters

where X is the number of basic land types among lands you control

Assign each pile to a different one of those attacking creatures at random

Set: Shards of Alara Type: Artifact Creature — Sphinx Rarity: Rare Cost: {4}{U}{U} Flying

Mary O'Kill [Unstable] Moag (A source with wither dealsSet: Unstable Type: Legendary Creature Human Villain Rarity: Rare Cost: {5}{B R} {1}{B R}: Switch a Killbot or Mary O'Kill in your hand with one on the battlefield. (If a creature is tapped, the switched creature is tapped. The same is true for untapped, attacking, blocking, enchanted, equipped, and targeted. Any counters on a creature are on the switched creature instead.)