Tomes from the crypt changes?

I feel the TFTC and SMulcher combo is very grindy and dull. What about adding the chance to spawn a demoned similar to Prestons but would bring the lava dragons into play with special attacks or bonuses etc. Maybe even demons that spawn on lava though this is probably harder to achieve. Would open the door to some more funky lava dragons and would be a nice change to have a PvE update rather than PvP. 😉