It's true we don't know anything about the genetics involved short of the developer statements on the matter. Is it several genes? Just one? Is it sex-linked? Can pureblood Garleans even interbreed with other races, or is there a significant genetic barrier? Personally, I would avoid a part-Garlean, as almost anything you come up with will be very speculative with regards to lore and, IMO, it's difficult to see what this adds narratively other than a pretty big secret for the character to keep.
That aside, I'd advocate going with an approach that still makes the Garlean weakness a disadvantage, if nothing else to ensure that this isn't viewed as an attempt to benefit from both backgrounds. Maybe he can use Aether, but is markedly less adept than a native-born Eorzean. Perhaps he can only use certain types of magic.
That aside, I'd advocate going with an approach that still makes the Garlean weakness a disadvantage, if nothing else to ensure that this isn't viewed as an attempt to benefit from both backgrounds. Maybe he can use Aether, but is markedly less adept than a native-born Eorzean. Perhaps he can only use certain types of magic.
The Freelance Wizard
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Quality RP at low, low prices!
((about me | about L'yhta Mahre | L'yhta's desk | about Mysterium, the Ivory Tower: a heavy RP society of mages))