I have been giving thought to the 1st Avatar world setting...I am going avoid specifics that are plot related.
The setting presents a world with the material and spirit realms existing within the same plane...the barriers having been broken...the spirits take the forms seen in spirited away, living in areas called the spirit wilds...(which we like very much thank you)...the spirits are not understood by humans and humans do not differentiate between spirits and animals.
There was a line that I found interesting within the 1st avatar story..."Why not go live in one of the other lion turtle cities?"
Each lion turtle is affiliated with one element...so that would be 5...fire, earth, air, water, and chi...the last being an energy bender, giving and taking away bending ability and one would assume the finer points such as realignment, purge poisons, healing, etc.
But the mention of more than 5 is interesting...I could see another, spirit bender...the ability to center or calm spirits, thus purging the darkness as we have seen Korra and Unalaq use, which is explained as highly advanced and specialized healing...I suspect each primary bending type could use this spirit aspect if the bender was a master of exceptional ability and insight...but a spirit bender, in theory could use it at the baseline level...with a material use like ecoplasm perhaps? A blend of air and water.
So with that in mind, 6...fire, earth, air, water, chi, and spirit.
We saw some specialty bending...lightning generate/redirect and combustion(fire) (I know this gets the sith forumites all a quiver lol), metal and seismic sense(earth), blood and healing(water)...Air is a curious one, without a strong baseline, being they were nearly wiped out, there is no specialty noted...though the last was by an avatar so unsure if it was a combo...but for this thought we will let it ride.
There was a lava bender, though again was only an avatar.
So if we see these as combined in the Aang setting then perhaps they were primal in the Wan setting...and thus...
fire, earth, air, water, chi, spirit, lightning, metal, blood, lava...quickly with only a few moments of thought and we have 10
So with that thought in mind, the lion turtles during Wan's time, there could have been more types than the common 4 and the rare 5th.
Good times.
I guess we should wait another week or so before discussing in detail the world of avatar Wan and Raava.
PS
If there are any Avatar fans who are not caught up...you should do so!
