Since this seems to target the player (who is then forced to choose) could you steal Horus and other things with it that are unaffected by spells cards?
You guys didn't get the point: Horus lvl 6 is unaffected by spell cards that affect HIMSELF (by targeting or not). But this spell does not affect the monsters, it affects THE PLAYERS, so Horus lvl 6 can't do anything about it