Comeback improves ink efficiency, ink recovery rate, mobility, and Special Gauge fill rate for the first twenty seconds after respawning. It is restricted to headgear as a main ability and cannot be rolled as a sub ability.
This ability is found as the main ability only on headgear, so other abilities found only on headgear are mutually exclusive with it; in other words players cannot have them together. These abilities are Last-Ditch Effort, Opening Gambit, and Tenacity.