Dreg Mangler

The whole point of scavenge was to give an aggressive creature a second life without leaving it on the battlefield to be answered twice, and this is the mechanic's cleanest curve-filler: three power on turn three that swings immediately, then climbs out of the graveyard later to dump three counters onto whatever survived. The haste matters more than it looks, because it makes the front half a real clock rather than a body that sits a turn before doing anything, and it means the counter-dump version is the contingency, not the plan. Scavenge resolves the recurring tension in graveyard-matters aggro: a card that wants to die for value is a card you are reluctant to play out early, but exiling itself on the way out (sorcery-speed, as a one-shot) keeps it from being both a beater and a permanent recursion engine, which would price it well above three mana. The counters go onto a target creature, so the late mode rewards a board that has stuck rather than a single fragile threat, the same way a +1/+1 anthem effect wants width. Golgari's color pair is the natural home for this kind of design: black supplies the willingness to spend cards, green supplies the counters and the bodies to put them on, and the graveyard is the shared resource both halves draw from.