Nightshade Harvester

Punishing land drops is old ground: Zo-Zu the Punisher and its kin have long tried to make an opponent's manabase hurt to develop. The wrinkle here is that the punishment feeds back into the creature. Every land an opponent plays costs them a point of life and swells this body by a counter, which means the clock accelerates on exactly the resource an opponent cannot stop deploying if they want to keep casting spells. A four-mana 2/2 that fattens itself off opposing land drops is asymmetrical pressure: the same action that advances their game plan advances yours. What the design resolves is that hatebears usually ask an opponent to change behavior, which disciplined players simply refuse to do. This asks nothing. It taxes the most automatic play in the game and converts the accumulation into a growing threat. The 2/2 base is the honest part: unattended, it starts small enough to die to almost anything, so the payoff is entirely contingent on how long it survives while opponents keep laying land. Left alone across several turns against a green-heavy or ramp-leaning opponent, the life loss and the size both spiral, which is precisely when the removal spell that was never spent starts to look expensive in hindsight.