Biotransference [Warhammer 40,000] BT19-011 you may cast that card

you may cast that card face down as a 2/2 creature spell without paying its mana cost

I'll teset it myself

{T}: Untap target creature

Set: Multiverse Legends Type: Legendary Creature — Demon Kraken Rarity: Rare Cost: {4}{U/B}{U/B} Companion — Your starting deck contains only cards with even mana values

Set: 30th Anniversary Edition Type: Sorcery Rarity: Rare Cost: {X}{R} Earthquake deals X damage to each creature without flying and each player

Biotransference [Warhammer 40,000] BT19-011 you may cast that cardSet: Warhammer 40,000 Type: Enchantment Rarity: Rare Cost: {2}{B}{B} Creatures you control are artifacts in addition to their other types. The same is true for creature spells you control and creature cards you own that aren't on the battlefield. Whenever you cast an artifact spell, you lose 1 life and create a 2 2 black Necron Warrior artifact creature token.