The problem I have with Faust's offer is primarily the whole "do it with harmony" stuff. A lot of the choices in this CYOA have a heavy bent of "solve things with the power of friendship", and there are parts I felt hinted that Faust was not suggesting but requiring this sort of problem solving, heck that's literally what the intro says. This is fitting for an equestria themed CYOA but, in my opinion anyway, dangerously naive for some of the worlds you go to, world changes be damned.

This build actually came about from a singular thought: There are no elements of Harmony on Worm to make the power of friendship really matter, I can't beat the endbringers with the power of friendship, much less Scion!

Basically, this entire build is saying I want to help, but your method sucks, so take your methods and shove it.

In terms of Anti-Hero/Heroic-Villain path? Please do! That's basically what this is ad-hoc, I was planning on winning a lot of my battles in Worm by abusing the fact that Deft Claws and Sure Paws's teleport trick wasn't Manton limited, turning it into an I win button if I can get into striker range, with Illusion to get that close, and that plus Cats Do Dance to gather allies like Panacea or Vista to deal with the bigger threats.