Rhizome Lurcher

The Golgari payoff that asks you to fill your graveyard with the right kind of card. Undergrowth counts creature cards specifically, not lands or spells, so the design steers self-mill and sacrifice engines toward a body that scales with how much creature material has already died. The 2/2 base is the floor, the rate you accept when you cast it early; in a deck built around graveyard accumulation it arrives as a four-mana threat several sizes larger, and the counters are real +1/+1 counters that survive what a power-pumping aura would not. The counters do the structural work that recursion does in other graveyard strategies: instead of bringing the dead creatures back, it converts their presence in the yard into permanent stats on a single attacker, turning a turn of milling or sacrificing into board presence on a clock. What keeps it honest is that the count is locked at entry: nothing it does later cares how big the graveyard grows, so the reward is front-loaded into how patient you were before casting it. A Fungus Zombie sits comfortably in both tribes that lean on death and decay, but the card's identity is less about creature type than about being the curve-topping incentive for a graveyard you were going to build anyway.