The option with a ruler-Guardian is good, but is it appropriate for the Elves? I think, at the request of the players, I will create some race with a Guardian, but not the Elves, otherwise I will have to redo too much. For the Elves, it should be a recognizable druid character. I am replacing Tiviona with Elrich Parson.
Muga - the weaves are something like tree-like structures, brought to life by magic. Inside, an archer can be placed, thus creating a piece of forest with an archer inside.
Beorn - forest werewolves that transform into bears, they are engaged in beekeeping and growing fruits, and also practice healing.
Gamehunter - it turns out that three new units appear for Rampart, many additions for the triple upgrade, level 8, commanders, defender.
By the way, which name is better, Aquilon or Land of Eternal Forests?