Strife and Black Heart had a bit of a religious falling out over the topic of Ynnead.
Lelith sent some of her forces to aid in Yvraine’s quest, sort of as a means to put a toe in the door of salvation in case it came to fruition. And at the same time, Vect is on a headhunt for Yvraine as punishment for breaking the ‘no psyking’ Rule and causing a massively expensive disjunction.
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This world exists because of the things we have done, forever branching to the decisions we make and twisting to what we do not.
”Woe to our enemies. We'll tear them apart regardless.” ~Barrywise