When i have a Torch of the Pontifex equiped as a sorcerer and kill enemies with elemental nova it spawns elemental nova replicates instead of the cremation and clears all the map for me basicly. if i use fireball it replicates fireball instead when the mob dies.
even tho its extremely satisfying i’m pretty sure its not intended. i guess you could take this as an idea for a future unique? 
elemental nova duplicate + ignite stacks feels amazing