Harmonic Prodigy 352 (Modern Horizons 2)

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) If an ability of a Shaman or another Wizard you control triggers, that ability triggers an additional time.

NM - $6.50
LP - $5.20
MP - $3.90
HP - $2.60
DMG - $1.50