Rock Dervish in Lavastorm should be classified as Summoned
 

On red- my Expulse Summoned wont work on a rock dervish.

Anecdotally, I levelled here on my druid back in 2000 or so and used anti-summoned.

Here are ZAM and Magelo...

https://eq.magelo.com/npc/414764

http://everquest.allakhazam.com/db/npclist.html?zone=31

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