Daxos's Torment

Oracle Text

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.

Card Rulings

11/4/2015 Although Daxos’s Torment will become a creature after it enters the battlefield, it doesn’t enter as a creature. Abilities that trigger whenever a creature enters the battlefield won’t trigger.
11/4/2015 If the triggered ability resolves while Daxos’s Torment is already a creature, that ability will override any effects that set its power or toughness to a specific value. Effects that modify power or toughness without directly setting them to a specific value will continue to apply.