Heroes of Telara E3 Preview

Trion World Network's fantasy MMORPG Heroes of Telara is the subject of another late E3 preview, and this time it was penned by the guys over at WorthPlaying.
Outside of combat, a character can change his or her base class whenever the player feels like it, going from fighter to mage to thief to cleric without a noticeable penalty. Anyone can tank; anyone can heal; anyone can do damage.

You can further specialize your role by equipping sub-class cards, which are available in the game world like any other piece of equipment would be: You can find them as drops, in stores, or as quest rewards, or get them from trainers or treasure chests. A given sub-class card interacts with the base class to create a new class for the player, with appropriate specialties and vulnerabilities, and you can even do so in the middle of a fight.