Will of the Jeskai

Split into two halves, neither of which is anything special alone: a symmetric wheel that lets each player discard their hand and draw five fresh cards, or a one-turn flashback grant that stamps each instant and sorcery in your graveyard with a flashback cost equal to its own mana cost, no discount. The first is a red spellslinger staple; the second is a Yawgmoth's Will-style recursion that pointedly refuses to cheat on cost. The commander clause is the entire reason the design coheres. Choosing both when you control a commander unlocks a sequence that reads better than either mode: the modes resolve in the order printed, so the wheel fires first, filling your graveyard with whatever instants and sorceries you discarded to it, and then the flashback grant blankets that fuller yard, everything the wheel just discarded now included. What the ordering does not permit is a loop. The flashback grant attaches only to what sits in the graveyard as the spell finishes resolving, so cards drawn off the wheel that you cast this turn hit the yard too late to be re-cast; there is no engine recurring the fresh hand. The modal "choose both" does work a flat rate never could, gating a two-mode payoff behind the exact deckbuilding constraint of controlling a commander, reading its own context and pricing its ceiling behind it.