Moon Priestess Nici

Moon Priestess Nici is a night elf priest who wanders around Dalaran and acts like a player (using Hearthstone, training professions, checking the bank, etc.).

In Hearthstone
Nici appears as HS Moon Priestess Nici (one of the bosses) that can be encountered in the HS Dalaran Heist single-player experience in the Rise of Shadows expansion for Hearthstone.