Power Sink [Introductory Two-Player Set] Will Morph {U} (You may cast

Morph {U} (You may cast this card face down as a 2/2 creature for {3}

Return that card to the battlefield under its owner's control at the beginning of your next upkeep

It's an experiment

Set: Antiquities Type: Creature — Phyrexian Demon Rarity: Rare Cost: {4}{B}{B} Flying (This creature can't be blocked except by creatures with flying or reach

{5}{G}{G}: Elves you control get +2/+2 and gain deathtouch until end of turn

Power Sink [Introductory Two-Player Set] Will Morph {U} (You may castSet: Introductory Two Player Set Type: Instant Rarity: Common Cost: {X}{U} Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.