Arlinn's Wolf
Evasion tuned to the exact board state it expects to face. The 3/2 body is the aggressive green common's usual footprint, but the "can't be blocked by creatures with power 2 or less" clause is a bet about who lines up on the other side: the small blockers, the mana dorks left standing, the chump-ready tokens a defensive board leans on. Against those, it simply slips through. Against a wall of larger bodies it does nothing special, which is the honest limit of the design: the evasion is conditional on the opponent playing small, and it switches off the moment they play big. That makes it a beatdown enabler more than a standalone threat, a creature meant to keep pressure flowing in the mid-game when both players have committed board and the ground is clogged with cheap defenders. As common-rarity aggro fuel tied to a Planeswalker's flavor, it fills a plain role: a green three-drop beater whose one wrinkle is that it punishes the exact kind of small-creature clutter aggressive decks tend to run into.
