Djinn of the Fountain (Dominaria United)

Creature Ñ Djinn - Flying
Whenever you cast an instant or sorcery spell, choose one Ñ
¥ This creature gets +1/+1 until end of turn.
¥ Exile this creature. Return it to the battlefield under its owner's control at the beginning of the next end step.
¥ Scry 1.