Thanks! There is no way I can learn all the new writs lol

It would be nearly impossible to collect enough data to make a definitive conclusion without some very dedicated record keeping by character from lots of people while knowing exactly how many motifs you know as to whether or not there is one.

It IS KNOWN that it requires COMPLETE motifs known to have an effect, which seems to indicate that it is achievement based. That is, when the achievement on that character is completed, it adds to the drop rate.

That said, ANECDOTALLY, it appears that it is a tapering effect. Learning a few full purple motifs does provide a noticeable increase in drop rate over knowing none at all. The metadata I have from my two accounts would suggest this, as my main account has a higher "base" level of knowledge of motifs over my alt account, and does see statistically higher drop rates of motifs. There was also an increase in drop rates on the alt account as it learned some easily available purple motifs (Hollowjack, etc..), more than could be explained by a "linear" increase of only knowing like 3/100 motifs on those characters.

It's believed that the base game, single book purple motifs, DO NOT affect this drop rate.

All evidence and data I've seen suggests that knowing "all the motifs" does not provide a significant increase in drop rates over knowing a few of the motifs.

I'm a math person, I think the drop rate chance is some sort of summation function



Where n is the number of total motifs that you know.

This would mean if you know 1 full motif, you get a 1% increase chance. If you knew 2 full motifs, you'd get 1% + 0.5% = 1.5% The 50th motif learned would increase your odds by 1/50 (0.02%) in this function.

This would make the first motifs learned the bulk of your increase in knowledge, but even learning the 100th motif would increase the chance ever so slightly.

I have NO IDEA if this is what they actually use (but it'd make some sense as it'd be easy to program and compute), but this would fit with the anecdotal evidence that we have.

(I have tracked some data by character as to the drop rates based on motifs known, but as I opened with, it would take YEARS, if not DECADES of daily writs on characters (without changing motif knowledge at all) in order to determine the pretty small increases that the motif knowledge would gain us at the tail ends)