Daxos's Torment

Tourment de Daxos (Daxos's Torment) (fr)

Enchantment (CMC 4)
Constellation -- Whenever Daxos's Torment or another enchantment enters the battlefield under your control, Daxos's Torment becomes a 5/5 Demon creature with flying and haste in addition to its other types until end of turn.