Lorthos, the Tidemaker is a mythic Legendary Creature — Octopus card from The List (PLST), collector number ZEN-53. Current market price: $1.96, 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.