The Final Fantasy mythic has a jaw-dropping text box, giving a counter whenever you cast a noncreature spell while also dealing a damage to your opponent and then, once each turn, letting you make mana equal to its power for free
Honorable Mentions Alongside the previously discussed commanders perfect for this ridiculous strategy, Elsha of the InfiniteElsha of the Infinite and Renari, Merchant of MarvelsRenari, Merchant of Marvels, there are still a few cards that we haven't discussed, although they're admittedly outside of the command zone (and therefore require a bit more planning)
When they do, they find a card that perfectly encapsulates what black wants to do and provides good, honest value, so its a great entry point
Youll also only ever be facing off against one opponent in a two-player duel unless youre playing in a variation of one of these formats
This came to its worst point yet with the Commander Legends expansion set back late last year, and nobody really knows what to do about this on a consumer level