"Honestly, his heart. In Haruka-San own words, "The heart is a great indicator, someone with large amounts of darkness in their heart should not wield pokemorphs, with destructive capacity that far outway many legendary. He may not see it but he is very much like Nobunaga, both men were destinated to be powerful dragon masters, but Nobunaga went on to become the evil Dragon Superior. I'm just not willing to give up Sceptile until I can see Coleman-kun won't end up going down thr dark route". You all sensed that during his battle with Klara" Selina told them. "Or it might just end up being something as simple as she wants to fight him at full power once all three of out other sibling have been defeated"