Mind Flayers, vampires (the streets of Athkatla at night are simply awful), beholders/gauths, Umber Hulks - in no particular order.
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Sapphire Dragoness of ALSB
Waitress at Cloudy's Cafe
Magess of Lady Lioness' Court
Saint of the SoS
Historian of IW
Mage of the Morning Triumvirate
Most Illustrious Arch-Magess of the Illuminati
Lux omnis est
Once Upon A Paper Writer's Forum