Chromium, the Mutable [Core Set 2019 Prerelease Promos] Tyranid Swarm Set: Gym Heroes Unlimited Type:

Set: Gym Heroes Unlimited Type: Water Rarity: Rare Retreat cost: Colorless

Set: Neo Genesis 1st Edition Type: Colorless Rarity: Holo Rare Retreat cost: Colorless

Set: EX: Sandstorm Type: Colorless Rarity: Uncommon Retreat cost: Colorless

Set: Sword & Shield: Astral Radiance Type: Water Rarity: Secret Rare

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Chromium, the Mutable [Core Set 2019 Prerelease Promos] Tyranid Swarm Set: Gym Heroes Unlimited Type:Set: Core Set 2019 Prerelease Promos Type: Legendary Creature Elder Dragon Rarity: Mythic Cost: {4}{W}{U}{B} Flash This spell can't be countered. Flying Discard a card: Until end of turn, Chromium, the Mutable becomes a Human with base power and toughness 1 1, loses all abilities, and gains hexproof. It can't be blocked this turn.