Elemental King/Queen summoning limits?

[Huzurdaddi]

It's definitely not useful in every battle, but in the right situations

Hence middle of the pack. IMO. Although I have stood corrected that if you have the correct cross-paths ( in particular death ) then it becomes much better.

And a group of astrologers with as many spell focuses, starshine skullcaps, boots of quickness, crystal coins, and rune smashers

That's a lot of hardware to put on a 10 hit point body. You may cry if you get hit with a flames from the sky.