Lorthos, the Tidemaker is a mythic Legendary Creature — Octopus card from Zendikar (ZEN), collector number 53. Current market price: $0.54 (foil $5.62), 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.