Kaya, Orzhov Usurper

The three-loyalty planeswalker built to police the bottom of the curve on two axes at once. Her minus exiles any nonland permanent with mana value one or less, which quietly sweeps up mana dorks, one-drop hatebears, cheap enchantments, small equipment, and a good chunk of the cantripping one-drop artifacts that lubricate combo decks. That single restriction (mana value one or less) is what keeps her from being an open-ended spot-removal engine: she is priced to answer the cheap stuff, not the finisher. What makes her more than a cheap removal walker is the plus-one, a rare case of graveyard hate stapled to a loyalty engine, exiling up to two cards from a single yard while ticking upward and gaining life when a creature is caught. Most graveyard interaction lives on one-shot spells or fragile enchantments; folding it into a planeswalker's tick means the hate accrues turn over turn without costing a card in hand. Her ultimate then reads the target's entire exile zone: the drain scales with how many cards that player owns in exile, whether Kaya banished them, they self-exiled off their own effects, or they got there by any other means. Against decks that lean on foretell, adventure piles, impulse-draw shells, or their own graveyard-to-exile hate, that number climbs on its own, and the minus and plus only pad it further. She is one of the tightest expressions of the Orzhov design brief: incremental attrition against small permanents, graveyard denial that gains life, and a payoff that rewards patience over tempo.