DTK: Skywise Teachings, Enchantment 3U Whenever you cast a noncreature spell, you may pay {1}{U}. If you do, create a 2/2 blue Djinn Monk creature token...

Skywise Teachings

Whenever you cast a noncreature spell, you may pay 1U. If you do, create a 2/2 blue Djinn Monk creature token with flying.

11/17/2017 While resolving the triggered ability of Skywise Teachings, you can’t pay multiple times to create more tokens.