Sink into Takenuma is a common Sorcery — Arcane card from Saviors of Kamigawa (SOK), collector number 89. Current market price: $0.08 (foil $0.44), TCGplayer market prices via Scryfall.
Sweep — Return any number of Swamps you control to their owner's hand. Target player discards a card for each Swamp returned this way.