Twinblade Slasher

The point of pairing wither with a repeatable pump is what the counters leave behind. A one-drop that can swing in at 3/3 and trade with a bigger blocker is unremarkable on its own; the difference is what happens when it does not die. Damage this creature deals lands as -1/-1 counters, so any creature that survives the exchange (a blocker too large to kill, a chump that lives, an attacker it bites back) walks away permanently shrunk. The board the opponent rebuilds the next turn is the board this card already chipped at. The pump itself still obeys ordinary combat math: pushed to 3/3, it still takes lethal from a 3-power blocker and still dies. What it buys is not survival but a worse trade for the opponent, since the survivor keeps the scar. The once-per-turn cap on the boost is the brake that keeps the activation from becoming an open-ended mana sink; it reads as a single decisive combat decision rather than a spiral. As a green one-drop, it occupies the slot where aggressive green wants a body that still matters past the early turns: cheap enough to play on curve, but able to keep eroding toughness across multiple combats instead of falling off. The Elf Warrior typing is incidental. What shapes the card is the meeting of wither with a capped, repeatable boost: a small body that taxes the opponent's whole board every time it connects.