Riddle me this, a sprite malfunction

The reason I ask about was it possible to load other palettes would be to give each character a custom palette instead of trying to load a custom sprite and make it fit a palette ment for three other sprites, like portraits have. I think Ive looked at where that would be done but didnt look hard enough to actually read it. Just wondering if there was any major issues with say, making Edgar use battle palette 0 for overworld and battle then giving sabin overworld palette 0 for both his, battle and overworld, before I added it to my "to research" list.