what is completion bonus?

I tried to google but only found threads about ppl asking what rolls can they get.

Is this just a random bonus you get on relics or do you need to use the relic in conjunction with something else to get the bonus?

As far as I know, ‘completion bonus’ for things like relics just means you get a randomly-rolled boost on top of the relic’s basic stats. The relic I’m using right now gave me a completion bonus of +1 to one of my nightblade skills, for instance.

It’s only on relics. You used to be able to get random bonuses on components too but it was removed in favor of stacking them.

thanks guys!