Eternal Adversaries
UNIQUE- Red Skull: Well-Timed Blocks have +10% chance to Perfect Block for each Buff on Red Skull.
- Captain America (WWII): Well-Timed Blocks generate a Fury Buff increasing Base Attack by 20% for 5 seconds.

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 | 19,160 | 23,400 | 27,740 |
| 20 | 21,800 | 26,630 | 31,570 |
| 40 | 22,630 | 27,640 | 32,770 |
| 60 | 23,330 | 28,490 | 33,780 |
| 80 | 23,940 | 29,240 | 34,670 |
| 100 | 24,510 | 29,930 | 35,490 |
| 120 | 25,040 | 30,580 | 36,260 |
| 140 | 25,540 | 31,190 | 36,980 |
| 160 | 26,010 | 31,770 | 37,670 |
| 180 | 26,470 | 32,330 | 38,330 |
| 200 | 26,910 | 32,870 | 38,960 |
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.