Thassa, Deep-Dwelling (Showcase) Finish:Nonfoil You may discard an Island

You may discard an Island card and another card rather than pay this spell's mana cost

you may sacrifice another artifact

if that spell's mana cost or that ability's activation cost contains {X}

(Gain the next level as a sorcery to add its ability

That creature's controller gains life equal to its power

Thassa, Deep-Dwelling (Showcase) Finish:Nonfoil You may discard an IslandIndestructible As long as your devotion to blue is less than five, Thassa isn't a creature. At the beginning of your end step, exile up to one other target creature you control, then return that card to the battlefield under your control. {3}{U}: Tap another target creature.