Ok here is the thing if the sun spirit ever gets any champion trait especially things like infested since he has a strange ai that makes him attack infinitely but instead uses special attacks he basically summons a million silverfish or potion effects etc. You should look into this or at least make the sun spirit blacklisted mob by default XD. Just wanted to let you know.

I've just blacklisted it by default. Since it's a modded entity, there's not much I can do on my end if their AI is set up to attack that way.