You know… the furbolg thing had me thinking.
Remember how I said before that each covenant could bring in, if linked, somehow, an Allied Race that relates to it?
So what if:
Revendreth = San’layn
Ardenwald = Furbolg (Previously I’d said uncorrupted satyrs)
Maldraxxas = Lich
Kyrian = Vry’kul
?