How do enchanters hold high lvl camps?

[Arterian]

As a long time necro trying to adjust to the enc play style I struggle with long solo camps. Example: ghoul lord in lguk. With a necro I can have my permanent pet out and wait for spawn. On enc I would have to keep a frog on charm lockdown for 20 minutes in case he pops. Is that how it's done? Summoned enchanter pet won't cut it.