Aethersquall Ancient 
Creature — Leviathan
Flying
At the beginning of your upkeep, you get 
(three energy counters).
Pay eight : Return all other creatures to their owners' hands. Activate only as a sorcery.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL