User blog comment:A, Mori/Changing the Lore/@comment-1917722-20160222082657/@comment-1917722-20160222152555

Now that my head is less fuzzy and more clear, here's how I'll fit this in:

When Delinius dies from that random experimental spell, Dwin intervenes by forming a Nova that was absorbed by Delinius. The Nova's insertion into his soul does have the odd side effect of 'pulling in' fragments of the soul of the other three people that died along with it.

The soul fragments thingy is just because it was there already and could be replaced with the Nova altering some aspects of Delinius' personality instead.