Talk:Fate/Accel Zero Order -LAP 2-/@comment-27904100-20180906114510/@comment-28373305-20180907065535

That's incorrect. Raising efficiency increases NP rate and star generation aside not just damage. This is applicable to both the NP and normal cards of that type.

It's actually easy enough to check yourself if you take a servant with a high boost to art eff (such as Tamamo) and do one of the fuyuki quest (so you don't lose much AP).