the Masqueraider may be either the absolute best or worst class name ever devised depending on your tolerance for puns. Second of all, it's WAKFU's 15th class. Third of all, it's here, so go check it out.
The Masqueraider switches between roles using a clever mask system. While the first couple of skills in any line are available no matter what mask is worn, all of the other skills are mask-dependent. The masks range from coward (which relies on heals, escapes, and ranged DPS) to classic (which allows for excellent melee combat and helpful auras). There's even a Psychopath mask, which gives you a shortcut to the game's forums so that you can quickly write rants. Just kidding -- it's all about fire DPS.
The Masqueraider was part of WAKFU's February 26th update, which also included AP set rebalancing and profession bags.