Kaya, Bane of the Dead
Hexproof was designed as a one-way door: the aggressor casts, the spell finds no valid target, and the protected permanent stays untouchable. This planeswalker walks straight through it, treating both your opponents and their hexproof permanents as fair game for every spell and ability you control, not for a single turn but for as long as it holds the board. It does not punish hexproof or convert it into a drawback; it simply refuses to acknowledge the keyword, which is the more surgical outcome. A protected creature stops being a special case and becomes a creature. The −3 exile is almost an afterthought by comparison, though a clean one: it sidesteps indestructibility, regeneration, and death triggers in a single activation. But removal is not why this card earns its slot. Six mana across a flexible white-or-black hybrid cost buys seven starting loyalty and, more importantly, a passive that rewrites the terms of engagement the instant it resolves. Most planeswalkers accrue value in increments, ticking upward toward an ultimate or grinding out card advantage; this one delivers its most consequential effect the moment it lands and never spends a point of loyalty to do it. What sits on the battlefield is the whole point. The lone activated ability is just maintenance.
