Harmonic Prodigy - [Foil] Modern Horizons 2 (MH2) Sleeves attach it to target creature

attach it to target creature you control

then return it to the battlefield under its owner's control

Customize your party with over 30 vocations and level up in turn-based battles to learn new spells and abilities in this timeless quest

The "legend rule" doesn't apply to permanents you control

and furthermore

Harmonic Prodigy - [Foil] Modern Horizons 2 (MH2) Sleeves attach it to target creatureProwess (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. Each note strikes with deadly precision.