It’s 100% Natural.
The Druidic caste of the Forest of Thorns are the highest caste that a common Wood Elf can ascend to, with the Archdruids being the leaders of that caste.
From their numbers, one is chosen only twice every century to merge with the spirit of the forest and become a Green Seer.
The following troops have had changes to their troop types.
* Dryad changed from Fey to Fey/ Elemental
* Treant changed from Fey to Fey/ Elemental
* Gloom Leaf changed from Fey to Fey/ Elemental
* Swamplash changed from Monster to Elemental/ Monster
* Rowanne changed from Fey to Fey/ Elemental
Please note this Event only applies to Steam, iOS and Android versions of the game.