Headache
UNIQUE- Anti-Venom: Against #Villains Fury effects gain 30% potency.
- Punisher: Gain 30% Offensive Ability Accuracy against #Villains.

Every sig anchor × rank at A0. Sig levels in between interpolate smoothly (PCHIP) and round to the nearest 10 BHR — matching the in-game display.
| Sig | R3 | R4 | R5 |
|---|---|---|---|
| 0 | 20,220 | 24,690 | 29,280 |
| 20 | 21,940 | 26,780 | 31,770 |
| 40 | 22,780 | 27,810 | 32,990 |
| 60 | 23,490 | 28,680 | 34,020 |
| 80 | 24,120 | 29,450 | 34,930 |
| 100 | 24,700 | 30,160 | 35,770 |
| 120 | 25,240 | 30,810 | 36,550 |
| 140 | 25,750 | 31,440 | 37,290 |
| 160 | 26,240 | 32,030 | 38,000 |
| 180 | 26,710 | 32,600 | 38,670 |
| 200 | 27,150 | 33,150 | 39,320 |
BHR at each signature level by rank (non-ascendable — A0 only). The curve is concave — sig 0 → 100 captures roughly two-thirds of the gain from sig 0 → 200.