As chance would have it, I worked on my Poisonmancer Pit spreadsheet yesterday (click here for a quick look). It should simulate the relevant parts of the character (attributes, main skills, gear) and his performance in the Pit (i.e. it takes into account the specifics of monsters and calculates PN and CE dmg in various setups). In particular, the spreadsheet makes it easy to obtain and compare final results for various gear. (Too lazy at the moment to further prettify, sorry.) It should be usable for any PN/CE necro with minimal modifications. For Nihlathak, obviously change the monster specifics (and include Nihl), but we could also add your "after X seconds Y CEs to kill Nihl" calculations, etc. I would be happy to do this or help if there is interest. I hope this proves helpful and I welcome any comments, especially criticisms/suggestions/corrections. I would also link to onderduiker's CE post on AB, which is relevant for Nihl runs. It calculates the dmg from Nihlathak's CE, but player's CE from the same corpses is easily obtainable from these. Best of luck to the future 99ers!