You may be right or you may be wrong (Sadly we don't know how arcane magic work -at least not all of it-) maybe it just take someones food :P
OT: Salandria? weird choice, but i understand that it would be cool to have a GF that can control time (yeah i know they can't control time itself but you get my point) -Note: she have always been legal, since the first time you see her, you can see her as a child and as adult at the same time (it would be so fucking weird to have your GF transform into a girl)