Druidic magic is tied to the gaelic pantheon in my mind. Unless you are going with someone who is doing black magic. Sort of a hodgepodge a lister Crawley approach. Kinda how wiccan supposedly sprung out of victorian musings and romantic revival of "witch craft"? Either way I think the idea has wings to fly with. Just know there are avalonian and gealic druids in this. They might take offence that you claim a shared heritage. ;>