Feeling lots of agreement with what you've written here. Adding to it:
Magic in Thedas isn't a true binary "have" or "have not." One of the codex entries on magic says that some mages can barely light a candle. And then there is the debate on whether templars are partial mages due to their lyrium intake (and WoG has nodded his head in agreement that this is not a black-n-white situation).
The mist in Ivalice is connected with magic, and Fran says that when the mist is strong it makes magic stronger. So, if you headcanon that the mist is aeorsol magicite, and that magicite is similar to lyrium, you could have something to work with?
Another thought: Basch has the lowest magic stats of the main party, but he's been exposed to the mist all of his life, even if only at low levels, and this also occurred during gestation through his mother. Imagine if Basch's mother lived in Thedas when she was pregnant and she raised Basch (and Noah) there. Without exposure to mist, Basch would have been a non-mage in Thedas. Likewise, assume Fiona (for sake of argument) is Alistair's mother. We know she's a mage and we know that Alistair isn't one, but had she given birth to Alistair in Ivalice, that extra exposure to mist would have given him just enough ability to cast spells. FWIW, I headcanon that templars with mage family members are latent mages who are more readily able to work the anti-magic and pseudo-magic skills that templars learn. Thus, people like Carver, Meredith, and Thrask take more quickly to templar skills and "cast" those pseudo-spells more powerfully.
As for you questions at the end:
1. Alistair (or other templars) in Ivalice: using some variant of the logic above, I don't see why not. Alistair may also be able to learn other similar defensive spells too?
2. mage!Wardens: again, with logic above, I don't see why not.
I guess it really depends on whether you want magic ability to be a plot point or not. If key differences between Ivalice and Thedas help your story's plot, use that to shape how magic and templar-style anti-magic works.
no subject
Magic in Thedas isn't a true binary "have" or "have not." One of the codex entries on magic says that some mages can barely light a candle. And then there is the debate on whether templars are partial mages due to their lyrium intake (and WoG has nodded his head in agreement that this is not a black-n-white situation).
The mist in Ivalice is connected with magic, and Fran says that when the mist is strong it makes magic stronger. So, if you headcanon that the mist is aeorsol magicite, and that magicite is similar to lyrium, you could have something to work with?
Another thought: Basch has the lowest magic stats of the main party, but he's been exposed to the mist all of his life, even if only at low levels, and this also occurred during gestation through his mother. Imagine if Basch's mother lived in Thedas when she was pregnant and she raised Basch (and Noah) there. Without exposure to mist, Basch would have been a non-mage in Thedas. Likewise, assume Fiona (for sake of argument) is Alistair's mother. We know she's a mage and we know that Alistair isn't one, but had she given birth to Alistair in Ivalice, that extra exposure to mist would have given him just enough ability to cast spells. FWIW, I headcanon that templars with mage family members are latent mages who are more readily able to work the anti-magic and pseudo-magic skills that templars learn. Thus, people like Carver, Meredith, and Thrask take more quickly to templar skills and "cast" those pseudo-spells more powerfully.
As for you questions at the end:
1. Alistair (or other templars) in Ivalice: using some variant of the logic above, I don't see why not. Alistair may also be able to learn other similar defensive spells too?
2. mage!Wardens: again, with logic above, I don't see why not.
I guess it really depends on whether you want magic ability to be a plot point or not. If key differences between Ivalice and Thedas help your story's plot, use that to shape how magic and templar-style anti-magic works.