Koga's Ditto (10/132) [Gym Challenge Unlimited]Set: Gym Challenge Unlimited Type: Colorless Rarity: Holo Rare Retreat cost: Colorless

Set: Battle for Zendikar Prerelease Promos Type: Creature — Eldrazi Rarity: Mythic Cost: {6} When you cast this spell

Whenever you put one or more -1/-1 counters on a creature

Whenever you cast a Zombie spell

Set: EX: Deoxys Type: Colorless Rarity: Ultra Rare Retreat cost: Colorless

Set: Alpha Edition Type: Instant Rarity: Common Cost: {X}{W} Prevent the next X damage that would be dealt to any target this turn

Teferi's Isle enters the battlefield tapped

its controller sacrifices it unless they pay X life

untap the creature

Keranos deals 3 damage to any target

Set: EX: Emerald Type: Colorless Rarity: Secret Rare Retreat cost: Colorless

the Sky Ruin enters the battlefield tapped

Set: Black & White: Boundaries Crossed Type: Fire Rarity: Holo Rare Retreat cost: Colorless