Glenn J. said: Okay yeah, so I'm on the right track. I'm using 5e OGL and have been using NPC sheets for monsters and things but I'm making the first real significant villain of the campaign and went with a PC sheet. Side question - how does one equate CR to PC levels? Like if I made a 6th level Necromancer, is his CR 6 or is there some special way to compute? Does it follow the same as what's in the DMG? In 3.5 an NPC built with levels would usually have the same CR as its PC levels unless it showed up to the battle already wounded and low on hit points. In 5e the CR of an NPC is the average of the offensive and defensive CR which are computed in the way that @lordmage pointed out. The end result is that the CR of an offensive caster is very roughly 2/3 of its spellcaster level. My process for setting up a wizard is: 1. Figure out the ability scores, race, and other high-level stuff. 2. Figure out the most effective damage it is going to do for 3 rounds. For a necromancer that might be casting blight 3 times with the highest level spell slots it will have available. 3. Figure out its save DC. 4. At this point, I know the offensive CR of the wizard. If the offensive CR was 6 and I wanted a final CR of 5, then the defensive CR would need to be 4. 5. Set up the hit points and AC to reach the desired defensive CR and thus the desired CR. It seems like a lot of steps, but I have a spreadsheet that handles all the steps from the DMG so that I only have to type in the relevant information and it gives me the offensive, defensive, and total CR at the bottom. Then I can fill out the NPC character sheet and skip the parts of a 6th-level necromancer that do not affect the encounter. The PC sheet does some nice auto calculation, but it will have a lot of blank space for an NPC.