[quote=@Expolar]
[@Lugubrious]

Something just crossed my mind after reading your last post. But what do you think could happen if a Mystic Beasts was to accidentally or purposely kill itself? This was just a thing that popped into my head and made me quite curious. 
[/quote]

Hm.  I suppose that a person who perpetrated the Beast's death, whether or not they actually meant to, would receive the Arcana.  If the Beast did it totally free of outside influence, I suppose the Arcana would pick a random person suited to it to inhabit, but it is unlikely that they'll ever off themselves, even given some of their personalities.  Nobody really wants to experience death twice, and the power of being a Beast is rather intoxicating.