Friends
- All Champions gain +[130] Armor Rating.

Every sig anchor × rank at A2. Sig levels in between interpolate smoothly (PCHIP) and round to the nearest 10 BHR — matching the in-game display.
| Sig | R3 | R4 | R5 |
|---|---|---|---|
| 0 | 23,420 | 28,580 | 33,910 |
| 20 | 25,110 | 30,650 | 36,350 |
| 40 | 26,080 | 31,850 | 37,770 |
| 60 | 26,910 | 32,850 | 38,960 |
| 80 | 27,640 | 33,740 | 40,020 |
| 100 | 28,310 | 34,560 | 40,990 |
| 120 | 28,940 | 35,320 | 41,900 |
| 140 | 29,520 | 36,040 | 42,750 |
| 160 | 30,090 | 36,740 | 43,570 |
| 180 | 30,630 | 37,390 | 44,350 |
| 200 | 31,150 | 38,020 | 45,100 |
BHR at each signature level by rank, at maximum ascension (A2). The curve is concave — sig 0 → 100 captures roughly two-thirds of the gain from sig 0 → 200.