Cymothoa Exigua

Named after the real Cymothoa exigua — an isopod parasite that attaches to a fish's tongue and functionally replaces it. In Mewgenics, this creature replaces charm with capability: it attaches to the face and provides STR +2 and DEX +2, boosting melee damage and dexterity-dependent effects, at the cost of CHA -2. A solid trade for physical fighters who never needed charisma and want straightforward combat stat improvements from their face slot.