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: Innistrad: Double Feature Type: Instant Rarity: Uncommon Cost: {U} Return target creature to its owner's hand

Set: Strixhaven: Mystical Archive Type: Instant Rarity: Uncommon Cost: {R} Target creature gets +3/+2 until end of turn

Set: Commander Legends: Battle for Baldur's Gate Prerelease Promos Type: Creature — Elder Dragon Rarity: Mythic Cost: {5}{G}{G} Flying

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.