User blog comment:I Am Knowledge/Myosotis, The Flower of Chivalry/@comment-4334989-20120609173658/@comment-4490515-20120609174431

At the time I designed the ultimate, I used Singed's as a reference which was on a 25 second duration.

But I suppose she does need a nerf on her own duration with all the extra stats... 15 seconds then?