Territorial Witchstalker

Defender is usually the whole personality of a card: a wall exists to sit back and block, and most that carry the keyword never intend to swing. This one treats the keyword as a conditional gate rather than a permanent one. The 2/3 body holds ground early, but the moment you field something with power 4 or greater, combat opens the door: the pump and the attack permission arrive together, so it stops defending and starts pushing exactly when your board has grown teeth. The condition is checked at the beginning of your combat each turn, so the switch is never locked in; drop below the threshold and it slides back into wall duty. That two-mode structure is what makes the card worth a second look. A green two-drop that blocks competently in the early turns, then converts into a real attacker in the midgame without asking for extra mana or a separate anthem, folds a defensive opening and an offensive back half into one slot. The threshold is where the card pays for its flexibility: it rewards a curve that reliably lands a beefy body, and it does nothing in a deck that never gets there. The Wolf is only a wall in decks that fail to grow one; give it a power-4 companion and the defense clause quietly turns into a discount on aggression.