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When making an attack, the attacker rolls for damage. This is known as the Damage Dice of a weapon and indicates the initial percentage of damage that the weapon deals. The table below indicates the result of each number on the damage dice depending on what dice is used.

Table: Damage Dice                
Dice d2 d4 d61 d81 d10 d121 d20 D%2
1 50% 25% 17% 13% 10% 9% 5% 1%
2 100% 50% 34% 25% 20% 17% 10% 2%
3 75% 50% 38% 30% 25% 15% 3%
4 100% 67% 50% 40% 34% 20% 4%
5 84% 63% 50% 42% 25% 5%
6 100% 75% 60% 50% 30% 6%
7 88% 70% 59% 35% 7%
8 100% 80% 67% 40% 8%
9 90% 75% 45% 9%
10 100% 84% 50% 10%
11 92% 55% 11%
12 100% 60% 12%
13 65% 13%
14 70% 14%
15 75% 15%
16 80% 16%
17 85% 17%
18 90% 18%
19 95% 19%
20 100% 20%

1 – These are not typical damage dice for their uneven and strange results, but their equations have been included
2 – D% has a 1:1 ratio for result and percentage when determining its roll worth

After the initial percentage has been added through the Damage Dice, you may add any percentages that would increase damage e.g. Ability Scores, Perks, Powers, Abilities, etc.