The appropriate Slayer for the rats in the cavern of the discarded would be "vermin". Unfortunately, and I do not know the reasons, I have yet to see any spellbook or Scrapper's that is a vermin slayer.... And the vermin talisman does not work for spells, unfortunately. So the question is, is there any slayer that would boost spells for a spellcaster in the Cavern of the Discarded ? Or is it only Spell Damage Increase the one currently available as help with that particular spawn ? Thanks.