Sanctified Charge

In Commander, Sanctified Charge is a token-deck finisher — you're casting it on a board of ten or more creatures and ending the game, not using it as a reactive trick. It sees essentially no play in Legacy, Modern, or Pioneer, where six mana for a temporary pump with no card advantage is unplayable against faster, more efficient threats. Pauper is its most legitimate non-Commander home, where the card pool is constrained enough that a pump spell with two modes can matter in a tokens or go-wide build. In Oathbreaker the compressed game length makes six mana harder to justify, but white go-wide strategies with the right signature spell can still slot it as a closing punch.