When a character appears with a dual nature, a special type of ambigram some call a symbiotogram is highly suitable. Instead of reading the same upside down, this one becomes a different word.The words don't have to be the same length (Cadence is 7, Chrysalis is 9), but it would help. If only Luna and Nightmare Moon were close in length. Actually, "Princess Luna" and Nightmare Moon" might match...Illustration vector by