Adaptive Training Post [Tarkir: Dragonstorm Commander]

Set: Tarkir: Dragonstorm Commander Type: Artifact Rarity: Rare Cost: {2}{U} 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.