Merrill may look cute with her innocent demeanor and pink colors, but she is far from pure! She is the first cunning teacher and a wolf in sheep's clothing, using her wooly attire to disguise her horns as a goat-like quality while in fact they are a symbol of her infernal descendancy.
Yes, Merrill is a demon, and she will be teaching Enchantments and Hexes at the workshop. Exatcly what her descendancy entails, you will have to uncover in-game.
Merrill will be one of the focus points for June's content patch, and you will be able to encounter her on the test server prior to public release.