Ghostfire Drakeling

Flying
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Exile Ghostfire Drakeling: Add {u}, {r}, or {w}.
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"Legends tell of some drake hatchlings who naturally possess mistfire, bloodfire, and soulfire until maturity."
- Shu Yun, the Silent Tempest