Weaselback Redcap

The whole appeal is a one-drop that never stops scaling. A single red mana buys a 1/1 body worth nothing on its own, but the firebreathing-style pump keeps adding two power per activation with no ceiling, so the late-game floor is higher than the stat line suggests. The activation costs , which means the mana sink runs in chunks of two and always demands a red pip: this is not a perfectly granular dump for every floating point, but it is exactly the surplus an aggressive red deck tends to have once its curve is spent. That is the shape of the card. It commits nothing beyond the one mana at the point of casting, then converts a flooded board and idle mana into reach when the game runs long. The cost of that flexibility is efficiency: two mana per +2/+0 is a poor rate swing for swing, and the 1/1 body means a single removal spell or chump block erases the whole investment before the sink pays off. What it offers instead is optionality. You hold the mana up and spend it only on the swing that closes the game, and an aggressive deck cares far more about the last three points of damage than the first three. The Goblin Knight typing is a small bonus for tribal builds that want both, but the identity here is the mana sink, not the creature type.