>>42274352>ChrysalisGets in by being a foreign leader that Celestia would (presumably) want to try to convert into an ally. Her invitation would likely come with a plethora of caveats or would operate according to some sort of ceasefire contingency
>DiscordCan't stop him from going even if you tried
>TirekWould have to be wheeled in Hannibal Lecter style for him to be allowed in there
>CozyWould be assigned a guardian. Might be evil, but she's still a filly.