I think Scizor GX may be good for collecting, but it's very bad in the TCG.
I disagree. 110 for two energy and choice band isn't bad, nor is doing 230 with the GX. This is definitely gonna see play, especially since it has its own bench-filling engine in the Scyther. While I do agree its HP could be a little bit higher to make it really good, it's at least decent, even in this current meta. I haven't played in a few weeks though, so i guess I don't know how prevalent Volcanion is right now (although I can't imagine it being very popular, with 80% of the meta being Buzzwole/Lycanroc/Zoroark type stuff.) Not to mention, It really works well after rotation too, as Brigitte will have rotated with most of the other good draw supports, but it'll still have an engine to work with, especially when paired with Zoroark for mid-to-late-game draw support.