Thrashing Mossdog

Scavenge asked dead bodies to keep paying rent, and the deal here is unusually tidy: the body and the graveyard payoff are the same number. While alive it is a 3/3 that walls fliers; once it dies it converts its power into permanent counters on whatever creature you most want to grow. That continuity is the whole logic. Power equals counters delivered, so nothing is wasted between the card's two lives, and reach makes the front-half body relevant against exactly the decks that would otherwise ignore a four-mana ground creature. The cost structure supplies the discipline: scavenge fires only as a sorcery and exiles the card permanently, so the recursion is a one-shot you spend deliberately rather than a loop you grind. Six mana to move three counters is not a rate that bends a format, but the point was never the rate; it was teaching a graveyard to function as a slow mana sink that turns a traded-away creature into board presence two turns later. The plant-dog is the kind of unglamorous workhorse that rounds out a midrange green deck, attrition-resistant by construction rather than by raw stats.