I was trying to help with a question on the Steam forums regarding a trap, and I used Dredmorpedia as a source. For the "Very Hot Fiery Surprise Trap", the description gives base damages with pluses based on spell power. How is spell power calculated for a random trap? From what I can tell, the damage on the first turn for the trap would be: 5 (+ 0.1 ×) + 15 (+ 0.05 ×) Also, you get damage from Gog's Tactical Pyre as follows: 8 (+ 0.45 ×) The guy claims that his fire resistance was zero and the only debuff he was under was from extra-planar concentration.