Chromium, the Mutable [Core Set 2019 Prerelease Promos] Token Creature "I write upon clean white

"I write upon clean white parchment with a sharp quill and the blood of my students

that land doesn't untap during its controller's next untap step

If an opponent would begin an extra turn

At the beginning of the next end step

Set: Saviors of Kamigawa Type: Sorcery — Arcane Rarity: Rare Cost: {5}{B} Target opponent chooses a number

Chromium, the Mutable [Core Set 2019 Prerelease Promos] Token Creature "I write upon clean whiteSet: 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.