I give this concept a huge yay, Bryn! And I would love to have Sounsyy meet her sometime! (She's another old resistance Ala Mhigan who despairs at her people's loss of pride and identity.)
As for lore backing - the quests found in Little Ala Mhigo (which I believe you referred to in your post) lend to this idea of shamanism very well. The Ala Mhigans refuse Ul'dahn alchemies and healers, and will only suffer to be healed by their own ways, their own people, and medicines. The NPC who's on a quest to provide some aid to the dying refugees consults one of the elders in the settlement to learn more about Ala Mhigan medicinal practices. Also the idea behind the religious Order of the Fists of Rhalgr. By training and honing physical body and spiritual mind - one might achieve greatness in the eyes of Rhalgr.
So I say definitely go for it.
As for lore... most of what we know is about how Ala Mhigo fell and of the Autumn War 100 years before. The Ala Mhigans are a proud, highly spiritual people. We know many of them shave off their eyebrows to appear more intimidating on the field of battle. They were once the greatest military force in the known world, single-handedly repelling the entire Eorzean Alliance during the Autumn War and then later repelling Garlemald's entire XIVth Legion prior to Gaius van Baelsar sewing civil unrest and political turmoil into the city first.
The last 5 years before Ala Mhigo's fall, all of its citizens were forced under penalty of death or exile to worship Nymeia. Rhalgr was forbidden, despite it being the city-state's patron deity for god knows how many years before that.
That's all kinda general though. If you have any questions Bryn lemme know and I'll see what more I can find out for you! ^^
As for lore backing - the quests found in Little Ala Mhigo (which I believe you referred to in your post) lend to this idea of shamanism very well. The Ala Mhigans refuse Ul'dahn alchemies and healers, and will only suffer to be healed by their own ways, their own people, and medicines. The NPC who's on a quest to provide some aid to the dying refugees consults one of the elders in the settlement to learn more about Ala Mhigan medicinal practices. Also the idea behind the religious Order of the Fists of Rhalgr. By training and honing physical body and spiritual mind - one might achieve greatness in the eyes of Rhalgr.
So I say definitely go for it.
As for lore... most of what we know is about how Ala Mhigo fell and of the Autumn War 100 years before. The Ala Mhigans are a proud, highly spiritual people. We know many of them shave off their eyebrows to appear more intimidating on the field of battle. They were once the greatest military force in the known world, single-handedly repelling the entire Eorzean Alliance during the Autumn War and then later repelling Garlemald's entire XIVth Legion prior to Gaius van Baelsar sewing civil unrest and political turmoil into the city first.
The last 5 years before Ala Mhigo's fall, all of its citizens were forced under penalty of death or exile to worship Nymeia. Rhalgr was forbidden, despite it being the city-state's patron deity for god knows how many years before that.
That's all kinda general though. If you have any questions Bryn lemme know and I'll see what more I can find out for you! ^^