Talk:Arcane Rage/@comment-33102809-20171206140500/@comment-49.48.243.202-20180121170103

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The increase in damage stacks additively with mods that increase base damage e.g. Serration.

It means it would only increase serration boost by 20%

e.g. a rifle with serration and 4 elemental mods without buff will do  (1+1.65) * (1+0.9*4) = 12.9x damage. And the buffed one will do (1+1.65+0.2) * (1+0.9*4) = 13.11x damage or a whooping 7.5% increase in total damage.

That's not taking crit and multishot into account, the final result would be around 4-5%.

It really doesnt rock. This also applies to almost all of the +damage arcanes.