Celoenus

Celoenus is a blood elf warlock trainer located at Falconwing Square in Eversong Woods. He is an expert on the summoning of demons.

Quotes
I can sense your desire for power, warlock.
 * Warlock gossip

I apologize,. I mistook you for someone with a spine. Begone; our secrets are not for untrained ears.
 * Non-warlock gossip