I added my own Paxel by checking if AdaPaxels is installed and if so then use reflections to load my Powered Paxel.

The Powered Paxel uses RebornCore energy just like my other Powered Tools do. The energy is tripled on my tools as per Paxel fashion. I am currently debating on whether or not to mixin to the crafting table recipes to take the existing energy and then merge them together when creating the paxel (as well as working out how to deal with enchants). The upgrade from the netherite paxel already translates the energy via proportion.

I learned about AdaPaxels from the NFG Techdustry Pack as the wooden paxel is given to you when you first join the world. It seemed off that pretty much every other tool type had a Paxel but not my own, so I decide to create a Paxel to match.

If you would like to see my code, be my guest. The RandomTech-Rewrite repository is a temporary repository while I still bring RandomTech up to 1.17. It'll be merged back with the RandomTech repo once I finish bringing the mod back up to speed. https://github.com/alexis-evelyn/RandomTech-Rewrite/blob/1.17/src/main/java/me/alexisevelyn/randomtech/items/tools/powered/PoweredPaxel.java

That's great!