Can I get a general description about druidism

What is druidism I’m going to a event where they practice it it’s not the whole point of the event so I want to know beforehand if it’s worth it

What do druids use for magick like elements or gods something like that

What can be done with druidism the end goal of the magick

What tools do they use to do the magick

What are the most important tools for druidism I saw something about making wands or spellbooks I don’t like wands but depending how useful they are for real magick I can consider making or buying one

And my personal favorite is can I gain personal power out of it