I chain summoned in Overthere. Not the best ZEM but there is tons of mobs and you can sometimes get enchanters to give you clarity.
Um after that.. I think I did Dreadlands chain summoning. (always fire pets)
Feerrott - Bouncer Hurd & Bouncer Flerb. (they spawn along the river) Hurd by the fallen tree over the eastern fork and Flerg on the western fork. ( from CT)
Spectres too..
It's been so long since I leveled my mage and it went so quickly I nearly forgot.
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It may be worth doing this quest not for a little exp.
http://wiki.project1999.com/Drolvarg_Teeth
Back went I did it,. the xp part was broken or only granting 1xp... It got fixed recently.