Chromium, the Mutable [Core Set 2019 Prerelease Promos] Core Set 2019 Prerelease Promos using their libraries as their

using their libraries as their decks

Enchanted creature gets -1/-0

Set: Worldwake Prerelease Promos Type: Instant Rarity: Mythic Cost: {X}{R}{R} Multikicker {1} (You may pay an additional {1} any number of times as you cast this spell

Set: Unlimited Edition Type: Sorcery Rarity: Rare Cost: {2}{U} Each player shuffles their hand and graveyard into their library

Chromium, the Mutable [Core Set 2019 Prerelease Promos] Core Set 2019 Prerelease Promos using their libraries as theirSet: 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.