It took me a bit of digging into the DMG to see where that area attack assumption indicated. Ok, I think I'm starting to follow you. I'm new to creature development so I'm pretty dense about this subject matter still I appreciate your input.
I made some adjustments and reduced the blast by a...
oof. That was not the intention it should only be the Frost Burst that the creature can attack twice with and only once with Thunder Blast. I corrected that in the notations.
From your previous comment I know where that 24 came from and that since it is an area attack, the book recommended...
Sorry to bother you, but I appreciate the response. Taking what you said in math terms, offensive spells would have to do at least a quarter or half more damage than the average per round to increase the CR?
That is a good perspective that I had not taken into consideration. The creature I'm working on will be either CR 6/7 (The difference between the two is Hit Points and Average Damage per round.) I'm not settled on the spells or if I should include them, but this is what I have in mind for the...
I'm working my way through creating a new creature (5e) following Appendix C guidelines. This creature has spellcasting abilities, and I'm not sure how that type of "ability" factors into the creature's design.
So, for example, I'll use the Abjurer Wizard spells
At will: dancing lights...