Intrepid Adversary

The two-drop is the honest floor, and the ceiling is however much white mana you can pour into it on the way down. Cast it on turn two as a 3/1 lifelink beater and you have a fine aggressive body; cast it later with a few extra payments riding along, and it becomes an anthem that scales the whole team. What separates it from a one-shot entry pump is where the buff lives: because the +1/+1 is tied to valor counters on this specific creature rather than to the trigger that placed them, the bonus persists as long as the Adversary survives and stacks with anything played afterward. That persistence is also the liability the design leans on. The counters sit on a fragile 3/1 with no protection, so the moment it resolves large it becomes the obvious removal target, and killing it deflates the entire board at once. Lifelink is on the Adversary alone, not granted to the team, so the drain scales with this one attacker's climbing power rather than the width of your board; a large enough Adversary still turns a race into a rout on its own. This is the shape a full cycle of two-drops shared, each an "Adversary" that converts flooded mana into a haymaker: a single card that spans the curve depending on when you decide to cast it.