No, nair is not more effective than shine against spacies. Shine below the ledge is a free kill. Nair is nowhere near as reliable as a 100% kill from shine, but it can still work.Well, you can use both, but most prefer Nair.
btw, Nair can continually hit them, making a more effective edgeguard. Shine only hits them once, but has more hitstun.
The only other wolf guide I know about is the one by the wolf back room, its probably somewhere on the second page. It provides alternate perspectives and is made by multiple people so it's arguably less bias.I know theres more than jus the wolf guide.
Isn't there a wolf guide for like, pros or something?