A flying glass cannon with very low Health Growth, exceptional Strength Growth, and a little Armor. Their attacks Pierce, and they even get Sting to attack at range, though they don't get much Mana for it. They're relatively effective against grouped enemies.
For the most part they're nothing more than a nuisance, and not really worth a party slot as there are lots of better options out there. However if you really wish to use one, a few traits will make them worthwhile. The most important thing is bringing their Health Growth up to par, which can be done with Resilient and Generalist.
They can be sold for 100 gold at Medium size and for 300 gold at Enormous size. Every level above 1 additionally increases their price by 5%.