when you have thorn equipped with its catalyst all of your strand subclass abilities are effected and interact with thorns perk the corruption bleeds threw your strings of reality burning all you touch
soul devour can activate off of strand ability kills with both thorn and strand being effected your strand abilities ally thorn burn and increased burn damaged after kills
headshot or burn kills make souls aggressively track
burning targets receive more damage from strand sources and strand effected targets receive more burn damage
honestly if you only do half of this it would be lit