+Tidehollow (2)
When Tidehollow Sculler enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card.
When Tidehollow Sculler leaves the battlefield, return the exiled card to its owner's hand.
Flying
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Gatherer works better in the Companion app!