Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
Legendary Creature — Elemental God - (mythic)
Flying, lifelink
Creature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a creature spell pays for or one mana of that creature's color.)
At the beginning of your first main phase, you may pay . If you do, transform Eirdu.
