Dovin's Acuity

Dovin's Acuity never cracked competitive Modern or Pioneer — two mana for a draw-one is fine, but the hoops required to retrigger it each upkeep are too steep when those formats move too fast to reliably hold up an instant every turn. In Legacy and Vintage, the competition for two-mana enchantment slots is brutal and this doesn't make the cut. Commander is where Dovin's Acuity has its best case: flash-heavy Azorius builds running commanders like Ranar the Ever-Watchful or Lier, Disciple of the Drowned can realistically trigger it every turn, turning a two-mana investment into a steady card advantage engine over a long game. In Oathbreaker, the same logic applies with even more focus — pair it with a planeswalker that rewards instant-speed play and the value accrues quickly.