We already knew that Blizzard's upcoming third World of Warcraft expansion, Cataclysm, is going to change the face of Azeroth forever. One of the biggest changes? The popular MMO will now feature a quest line with its own interpretation of the popular casual game, Plants vs. Zombies.

The new series of quests can be found in the redesigned Hillsbrad Foothills, a zone that's been in World of Warcraft from the beginning. As you work through the quests, you'll unlock different plants, including WOW equivalents of the sunflower, peashooter, snow pea, wall-nut, and the chomper. It even has a final boss and a repeatable Endless Mode once you've finished the quest line!

Upon completion of the quest, players are rewarded with a ton of experience, new equipment, and a sunflower pet that will follow them around. Want to see it in action? Check out this video from Total Biscuit:

[via MMO Champion]