http://grandchase.ntreev.net/

This is a type of game, I've always wanted to see in a MMO aspect. Check out the video's, it's an extremely primitive form of the style but it's fun non-the less. You might have caught a glimpse of this on Xfire since they're advertising it atm.

My friend dragged me into it and after a few plays I didn't really like it. He also stopped playing due to equipment expiring or something like that.

Equipment becomes horrible and because of the timer it turns into a p2p game.