: Add . : Add one mana of any color. Spend this mana only to cast a legendary spell. : Add one mana of any color among legendary permanents you control. , , Exile this land: Target legendary creature gains hexproof (This permanent can't be the target of spells or abilities your opponents control.) and indestructible (Effects that say "destroy" don't destroy that permanent. An indestructible creature can't be destroyed by damage.) until end of turn.