Ertha Jo, Frontier Mentor

The second ability is the reason to build around this Kor, and it does something quietly greedy: it copies any activated ability you use that targets a creature or player, with fresh targets on the copy. Most "copy" designs live on the stack for one-shot instances tied to a single spell; this one instead sits on the permanent side of the board and taxes nothing to fire, so every tap-to-target ability in the deck effectively runs twice. The 1/1 Mercenary token it makes on entry is the tell for the intended engine: a sorcery-speed pump that, once copied, boosts two attackers, and the token doubles as a template for more tappers whose activations want to fork. Point it at repeatable "target creature" removal, at targeted +1/+1 counter grants, at fight or ping effects, and the copy clause turns a fair rate into a value spiral, since the second instance chooses its own target. The 2/4 body is the honest part of the deal: it survives incidental damage but poses no clock on its own, forcing the ability library around it to carry the game. The reward is for a specific kind of deckbuilding, stacking targeted activated abilities rather than raw stats, and the ceiling scales with how many of those activations you can resolve before the turn ends. The only narrow window is the sorcery-speed restriction on the token itself; the rest of the engine is only as fast as your other tappers.