Oh, and if someone happens to be interested in the actual history, frog coffins were a real thing in Finnish folklore, though they were usually good luck charms. You’d bury them under the church floor, the closer the altar, the better. I also used juniper wood, which was considered the most pure and beautiful wood, so I’m taking creative liberties here! But the people of old are gone and forgotten, and so is their magic. I’d say magic is meant to change and grow as people do anyway, so if I can borrow even a bit from the old to create new, I think that’s enough to keep the spirit of it.
And a lot of the magic was indeed used for curses, so I’m keeping that tradition alive for sure