Faithful Watchdog

A 0/0 that enters with three +1/+1 counters is a familiar bit of design sleight-of-hand: the printed toughness is a lie, and what matters is that the body arrives as a 3/3 whose power lives entirely on counters rather than in the stat line. That distinction is the whole point. Every counter this Dog carries is a resource other cards want to move, double, or spend. In a shell built to relocate +1/+1 counters, a two-mana creature that shows up with three of them is a battery, not just a beater; pull the counters off and the creature dies to state-based actions, which makes the counters a payload as much as a body. Vigilance is the quiet complement here, letting the counters stay useful on defense the same turn they threaten offense, so the card never has to choose between attacking and holding the line while its counters get harvested. The green-white pairing is deliberate: these are the colors that have spent years building the +1/+1 counter matters archetype, and a cheap creature whose entire value is denominated in counters is exactly the kind of raw material that engine has always wanted. It reads like a vanilla two-drop and functions like a fuel tank.