I know people both like and dislike the armor set for the warlock. I personally dislike the triceratops and would rather have a ankylosaurus as a helmet. Heck, even a pteranodon would make for a better set. Like a plague dr and the whole gliding in air them that the warlock has would match so much better. The whole class is about air superiority and having good resilience if needed.
The tri top just seemed so random and out of class character when compared to the other two classes.