Chromium, the Mutable - Foil - Prerelease Promo

Color: Multi-Color
Card Text: 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.
Rarity: P
Cost: 4WUB
Pow/Tgh: 7/7
Card Type: Legendary Creature - Elder Dragon
Artist: Chase Stone
Name: Chromium, the Mutable
Finish: Foil
Card Number: 214/280
Set Name: Core Set 2019