Quote Originally Posted by Cinco View Post
Because the 4pc set gives you the additional benefits of a fourth item. They don't require a beefier 4pc set bonus. They do however require four (4) specific pieces... and you can't get the bonus with three (3) items :-)
I guess there's some misunderstanding here, he is referring to the "set effects" those colored sparkles not set bonus. The wand set is missing the green sparkles, this also the case on dex set with xbow equipped which on the other hand only effect is the green sparkles.