Hylla, The Six Winged

+2: Exile one creature on the battlefield, that card remains exiled until this Hylla, The Six Winged leaves the battlefield.
-1: Regenerate target creature, that creature gains flying until your next endstep.
-15: All creatures you control gain, trample, haste, vigilance, flying, lifelink, mentor, menace, ingest, and +2/+1.