Guild Wars 2

When you have a bonus to might duration and a bonus to boon duration, are these bonuses stacking additively or multiplicatively?

EX:
- 10% boon duration
- 20% might duration
Result: 1.20 * 1.10 = 32% bonus duration OR 1 + (0.2 + 0.1) = 30% bonus duration ?

Additively.
/15 charrzookas.

Are you 100% sure? I don’t doubt what you are saying, I did no tests, but that would mean it is the only modifier that stacks like this, as far as I know.

Boon duration works exactly like condition duration in that it just adds the duration.

I.E. on my engi, with 30% from traits + 40% from runes, I get 51 seconds of might with Elixir B, which is 70% total.

Ok, thanks to you both