You can also be earning Bloodcoins to splurge on in-game items. Bloodlines is very Diablo-esque, but features no levelling but fixed PvP classes and gear.
You can choose from the stereotypical warrior, mage, archer and rogue type classes but also create hybrids from various combinations. Player skill is where it's at as your character doesn't level up and there's no new loot to go grinding for.
It's all about tactics and timing of abilities. Funcom and studio Stunlock are releasing Bloodline Champions sometime mid-January and it's a free-to-play MMO. Check out the Bloodline Champions website to sign-up for the open beta today.