Chromium, the Mutable [Core Set 2019 Prerelease Promos]

Chromium, the Mutable [Core Set 2019 Prerelease Promos]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.

choose new targets for that source

Set: Antiquities Type: Artifact Rarity: Uncommon Cost: {2} {2}

but for reasons known only to the two of them neither acknowledges the other—or their strained relationship

Set: Arcane Rising Edition: 1st Edition Finish: Rainbow Foil Type: Action Rarity: Rare Class: Mechanologist Cost: 0 Put a Mechanologist item with cost [1 Resource] or less from your hand into the arena

put it into the arena

Set: XY: Ancient Origins Type: Colorless Rarity: Ultra Rare Retreat cost: Colorless

only the strong survive

Set: Eventide Type: Creature — Faerie Wizard Rarity: Rare Cost: {3}{U} Flying

Set: Neo Revelation 1st Edition Type: Water Rarity: Rare Retreat cost: Colorless

Set: Diamond & Pearl: Stormfront Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

Set: World Championships 2008 Type: Water Rarity: Common Retreat cost: Colorless

Set: Sun & Moon: Black Star Promos Type: Dragon Rarity: Black Star Promo Retreat cost: Colorless