Adaptive Training Post (Extended Art) (TDC-058) - Commander: Tarkir: Dragonstorm: (Extended Art)

Whenever you cast an instant or sorcery spell, if this artifact has fewer than three charge counters on it, put a charge counter on it.
Remove three charge counters from this artifact: When you next cast an instant or sorcery spell this turn, copy it and you may choose new targets for the copy.