Nahiri, the Lithomancer

White's Equipment problem is a double tax: you pay for the sword, then you pay again to attach it, and the body underneath has to survive to matter. This planeswalker takes each layer as its own loyalty ability. The plus-two manufactures a Kor Soldier and suits it up in the same activation, waiving the equip cost on an Equipment you already control. The minus-two solves the other half, dropping an Equipment card straight from hand or graveyard onto the battlefield and skipping the casting cost outright, which is most of why it plays like a Stoneforge Mystic sibling in any deck running a handful of good swords. The two halves are deliberately exclusive: a planeswalker fires one ability per turn, so you are always weighing a fresh body against a fresh weapon rather than pocketing both. And because the minus-two only reaches hand and graveyard rather than the library, it rewards a deck that already has swords in play or in the yard rather than one hoping to dig for them. The ultimate is where it stops grinding and starts closing: the Stoneforged Blade, indestructible, equip for nothing, granting +5/+5 and double strike, enough to turn a freshly minted 1/1 into a twelve-point clock. That it can be your commander folds the whole sequence into a singleton context, where one permanent that either makes the threat or arms it patches a structural weakness the color has carried since its earliest sword-wielders.