Halcyon Glaze

Enchantment, 1UU (3)
Whenever you cast a creature spell, Halcyon Glaze becomes a 4/4 Illusion creature with flying until end of turn. It's still an enchantment.¹
Earth to Æther, window to wonder, stillness to the sky.
- Glazing incantation
Illus. John Avon

Gatherer Card Rulings [Nov 2009]

• 8/1/2008: A noncreature permanent that turns into a creature is subject to the "summoning sickness" rule: It can only attack, and its {T} abilities can only be activated, if its controller has continuously controlled that permanent since the beginning of his or her most recent turn.

Format Legality	Legal in Vintage, Legacy, Extended, MTGO Classic Banned in Standard
Printings (1/9)	Ravnica: City of Guilds (Uncommon)