Let the Galaxy Burn (Surge Foil) [Warhammer 40,000] Theros Promos sacrifice it unless you return

sacrifice it unless you return an untapped Swamp you control to its owner's hand

Set: Urza's Legacy Type: Enchantment Rarity: Rare Cost: {2}{R}{R} {3}

There's no escaping an enemy that lives inside your head

Nighthowler and enchanted creature each get +X/+X

Let the Galaxy Burn (Surge Foil) [Warhammer 40,000] Theros Promos sacrifice it unless you returnSet: Warhammer 40,000 Type: Sorcery Rarity: Rare Cost: {X}{5}{R} Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order.) Let the Galaxy Burn deals X plus 2 damage to each creature that didn't enter the battlefield this turn.