Aethersquall Ancient is a rare Creature — Leviathan card from Aetherdrift Commander (DRC), collector number 68. Current market price: $0.29, TCGplayer market prices via Scryfall.
Flying At the beginning of your upkeep, you get {E}{E}{E} (three energy counters). Pay eight {E}: Return all other creatures to their owners' hands. Activate only as a sorcery.