Full shuffled pillars ! :DD Here are their adapted stories (version in a nutshell) :
-Starswirl, alicorn of magic : first unicorn to ever reach alicorn-hood by his own means and teacher of Celestia and Luna. He became an alicorn before there was one government for all of ponykind, the fusion was done by the sisters after he disapeared. He is the one who created the first few models of magic and multiple spells. Some call him the "father of modern magic"
-Flash Magnus, earth pony soldier : the town he was situated in got attacked by a dragon, pegasi soldiers came since they are better abilited to fight a flying ennemy. They got beaten but before they could get burned to a crisp, Flash grabbed one of their shield and threw himself before the blaze, stopping it and managed to beat the dragon by climbing on it.
-Mistmane, pegasus : In this version, her friend is younger and became deadly sick during her absence. Her parents, to try and keep her alive as long as they could, locked her in the palace and she began asking for all the beautiful things, to feel as if she had been able to travel, explore and discover. Feeling isolated due to Mistmane being gone, the villagers being overworked and her parents not accepting that she wants to see the world, even if it makes her life even shorter. Finally, she snaps at them when Mistmane comes back and sacrifice a big part of her health for her (against her friend will, who also snaps at Mistmane, not having wanted her friend to suffer for her, but nothing could take it back), making her realize that no-object could make the disapointment of staying between the same walls disapear. And that she only felt hurt for the hurt caused to others to try and make her happy. Mistmane is a master of weathers and winds, able to make powerful puppet-cloud that she can use to attack. She is very weakened by her condition and needs regular rest-period.
-Rockhoof, unicorn : despite the stereotype on his race, he isn't a scholar and doesn't have natural talent in magic nor strong magic. Tried and tried to conform but it wasn't him. Realized he loved physical labor and was kind of shunned for it, so he shunned his own magic, when his town got in danger from the volcano, he (like in fim) began his trench, while digging, he realized his magic could help him and to amazement, when he accepted that he wasn't a failed unicorn for preferring physical labor nor a failed earth pony for having magic, it happened like fim and he saved his home. He began then working with the mighty helm despite them originally being earth pony only, due to unicorn army working only with their magic.
-Somnambula, unicorn : very close to fim until her magic was stopped by horn ring for the crossing of the bridge. She again crossed it by not losing hope or panicking. But the end wasn't quite as sweet and easy because, when she took the blindfold off and saved the prince, the sphinx decided to get one last hit before flying away and blinded her with a hit of claws in the eyes. She is also a dream-walker (like Luna, she can walk in dream. Though, contrary to her, she can only access dreams of people she touch and can't manipulate them, she has to make the dreamer manipulate their own dream).
-Meadowbrook, bat-pony : the exact same as fim, except she isn't an earth pony but a bat-pony. Bat-ponies generally lives in forest in my au due to not being as good flyiers as regular pegasus. They also have a better night-vision but are more easily blinded by bright light. I will at a moment make something to talk about the different pony kind in the au
-Stygian, earth pony : I can't tell much since it would spoil if I write precisely the au x'DD So, I will just say he is a shadow-infused earth pony. Where earth pony are normally infused with the magic of the earth (which give them their enhanced strenght and ability to grow crops more easily), he is infused with the shadows. It is a forbidden process done during pregnancy that is complete at birth. If Stygian had a child, except if he had them with another shadow-infused earth pony, the child would be either a regular earth pony or of the other parent race. Being infused with the 'wrong' magic has multiple consequences, notably being far smaller and weaker than normal, a weakened immune system, special culinary needs, ... It also allow access to the magic in question, more precision if/when I will do a post on them specificaly. Starswirl was aware of what Stygian was from the moment he saw him. Stygian isn't aware before being in current Equestria.