My magic users seem to have forgotten that speed exists. Lissa has 9 speed as a level 17 cleric (And every stat except luck is below 15), while Miriel ended up with 18 speed after speedwings and promotion at level 20.
This was after I restarted because Chrom ended up with something like 9 strength by level 15 and -str Avatar ended up with that stat higher than her magic. In both files, the likes of Sumia, Lon'qu, and Virion ended up almost game-breaking.