Judgement’s Fervent Impact and Rive’s Opportunist nodes have an interesting but weird modifiers of +25% and +10% more critical strike chance against ignited enemies. Initially you would assume this is a flat 10% added to your crit chance like crit vuln, but it states that it is multiplicative with other modifiers. How does this work in that case ?
A. It acts as a base 10% crit chance(similar to base crit on a weapon) and gets multiplied by all your %crit chance. So for example you have 10% base crit from weapon and 200% increased chance from gear so this will be (10+10) * 3 (increased by 200%)=60% crit chance.
B. It acts as a multiplier on top of increased crit so for the same example 10% base crit from weapon and 200% increased chance from gear, it will be 10*3 (200% increased)*1.1 (10%more) = 33% crit chance.
Calculating true crit would be a pain considering periodic buffs if its B.