Unown (L) (L/28) [EX: Unseen Forces]Set: EX: Unseen Forces Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

Set: Onslaught Type: Instant Rarity: Rare Cost: {3}{U} Any number of target opponents each discard their hands

you may search your library for an Ally creature card

" —Sun Tzu

where X is 2 plus the sacrificed creature's mana value

Out of the blackness and stench of the engulfing swamp emerged a shimmering figure

Set: Aquapolis Type: Fire Rarity: Common Retreat cost: Colorless

or maybe it's the giant monsters trying to demolish the place

Set: Commander 2017 Type: Instant Rarity: Rare Cost: {2}{W} Until your next turn

Set: World Championship Decks 2002 Type: Land — Rarity: Rare Whenever City of Brass becomes tapped

Set: Battle for Zendikar Prerelease Promos Type: Legendary Creature — Vampire Ally Rarity: Mythic Cost: {1}{B}{B} Flying

Set: World Championship Decks 1997 Type: Card Rarity: Common Kühn

you may sacrifice a creature