Aether Tide

A bounce spell that asks you to pay in bodies. The X-for-X structure looks symmetrical until you read the additional cost: every creature you return to its owner's hand is bought by pitching a creature of your own from hand to graveyard. That is a steep tax for a tempo effect, and it points the card squarely at decks that treat creature cards in hand as a resource rather than a board presence: graveyard-fueled strategies where discarding a creature is upside, reanimation shells that want bodies in the bin, threshold archetypes counting cards in the yard. For a normal blue deck the discard is dead weight; for a deck built to feed its own graveyard, the bounce becomes nearly free and the creature loss becomes a second engine. The design is a relic of an era when blue still got mass tempo without much restriction, and the discard clause is the friction Wizards bolted on to keep it honest. The timing tightens the screw further: as a sorcery, it only resolves during your own main phase, so it cannot ambush a combat step or reset the board mid-attack. The X creatures you return are ones you have already weathered, undone on your own turn before you commit. It reads as a combo piece more than a fair card, and it has spent its life waiting for a graveyard payoff dedicated enough to turn the cost into an asset.