Leviathan [The Dark] Anthologies Flashback costs your opponents pay

Flashback costs your opponents pay cost {2} more

Set: Antiquities Type: Enchantment Rarity: Uncommon Cost: {B}{B} Sacrifice a creature: Destroy target artifact

{20}: Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs

Set: Unlimited Edition Type: Instant Rarity: Uncommon Cost: {W} Exile target creature

Leviathan [The Dark] Anthologies Flashback costs your opponents paySet: The Dark Type: Creature Leviathan Rarity: Rare Cost: {5}{U}{U}{U}{U} Trample Leviathan enters the battlefield tapped and doesn't untap during your untap step. At the beginning of your upkeep, you may sacrifice two Islands. If you do, untap Leviathan. Leviathan can't attack unless you sacrifice two Islands. (This cost is paid as attackers are declared.)