For the damage-bonuses, first calculate them and then consult the table below.
Damage | <-8 | -8 | -7 | -6 | -5 | -4 | -3 | -2 | -1 |
Dice | 1 | 1 | 1 | 1 | 1d-2 | 1d-2 | 1d-2 | 1d-1 | 1d-1 |
Damage | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
Dice | 1d-1 | 1d | 1d+1 | 1d+2 | 1d+3 | 1D | 1D+1 | 1D+2 | 2d |
Damage | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
Dice | 2d+1 | 2d+2 | 2d+3 | 3d | 3d+1 | 3d+2 | 3d+3 | 4d | 4d+1 |
Damage | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | >25 |
Dice | 4d+2 | 4d | 4d+1 | 4d+2 | 4d+3 | 4d | 5d | 6d | +1d6 |