Worms of the Earth [The Dark] Turtle if Mana Vault is tapped

if Mana Vault is tapped

the Mirari pulsed like a dead sun—and its darkness radiated across Otaria

It can't be blocked this turn

You don't put a legendary permanent into a graveyard if you control two with the same name

Worms of the Earth [The Dark] Turtle if Mana Vault is tappedSet: The Dark Type: Enchantment Rare Cost: {2}{B}{B}{B} Players can't play lands. Lands can't enter the battlefield. At the beginning of each upkeep, any player may sacrifice two lands or have Worms of the Earth deal 5 damage to that player. If a player does either, destroy Worms of the Earth. The ground collapsed, leaving nothing but the great Worms' mucous residues.