Aqua Neos

Contact Fusion — Neos + Aqua Dolphin
(From the battlefield, shuffle all fusion cards
into your library. At the end of your turn, put this creature back to the Fusion Zone)

Haste, Trample

{1}{u}: Target opponent reveals their hand. You choose a card from it. That player discard that card. Activate as Sorcery only once per turn.