We've said it many, many times; Guild Wars 2 is the MMO to watch. With no subscription cost, a brilliant event system to replace standard quests, full-fledged (and branching) storylines and a tankless and healerless class system, Guild Wars 2 endeavors to keep what we love about MMOs and change what we don't. One of the less talked-about aspects of Guild Wars 2 is the Combo system...