Bringer of the Black Dawn

Commander is where Bringer of the Black Dawn actually earns its slot — the format's slower pace means you can reach nine mana or exploit reanimation and cost-reduction effects, and a tutor every upkeep wins games outright. In Legacy and Vintage it's a curiosity at best: nine mana is a non-starter in formats with Force of Will and fast mana, and the payoff doesn't justify the investment when cheaper tutors exist. Modern has the same problem in a less extreme form — the curve simply doesn't accommodate it outside of dedicated ramp or reanimator shells where better threats already compete. Oathbreaker follows the Commander logic closely enough that the same reanimation-focused strategies apply, though the smaller deck size makes the tutor effect marginally less game-defining.