Lorthos, the Tidemaker is a rare Legendary Creature — Octopus card from Commander Masters (CMM), collector number 103. Current market price: $0.34 (foil $0.77), TCGplayer market prices via Scryfall.
Whenever Lorthos attacks, you may pay {8}. If you do, tap up to eight target permanents. Those permanents don't untap during their controllers' next untap steps.