Part of me thinks that the math for the sword is wrong. It doesn’t increase the strength by 15%, but by 5% three times making it a compound gain. Basically, if you have a starting stat of 100 the first 5% would bring it up by 5, the second would bring it up by 5.25, and the third would bring it up by 5.5125, for a total of 15.7325. Of course this would rely on the author being clever enough to make it compound which sadly I don’t think he is.
Also, a Scrooge McDuck reference? That took me by surprise. I wonder if that’s in the raws or just added by the TL team…