A new character will soon be added to Elsword by the name of Ain, as teased by KOG games.
About all we have to go for is the teaser image, which doesn’t reveal much of anything except that Ain is likely to be a caster of some sort, judging by the attire worn. Also there are feathers. Lots of feathers. My bet is on bird-mage.
Guess we’ll have to wait to find out more, though, but my gut still tells me that Ain is a bird-mage.