I'm afraid no. Since the damage cap is 83k, then 100k fire damage should turn to 83k damage, and after applied enemy resist it'd deal around 166k damage (rollover point). Thing I am curious is - enemy resistance applies before or after this rollover check, if before, the damage should be zero. Conversely the damage should be near 166k...
Forgot about the dmg cap which is where it can get tricky when considering the skill being used. The LCS is not always accurate either. With more info someone should have a better answer for you. I'd assume the pierce is applied before though.
illusion wrote:mnx - does he heal when his minions kill something?
Just today I managed to kill him for the first time. He randomly heals, all the fucking time. You have to get the fuck out of there if you notice that, then he stops healing.