If you're planning to return to Azeroth when the new World of Warcraft expansion The War Within launches on August 26 (or you've already jumped into the early access period this week), you should consider equipping yourself with an MMO mouse.

To be clear, almost every mouse will work for general MMO gameplay, and most devices marketed as "MMO mice" aren't much different from other PC gaming models, but there's one crucial difference: extra buttons. Lots of extra buttons, in fact. We're talking anywhere from 10 to 20 or more additional buttons. These extra inputs usually sit on the side of the mouse for easy access with your thumb. The buttons can be mapped to the various skills and abilities you use in-game, making it easier to stay consistent with your combat rotations, pop a weave ability at the opportune moment, or even just navigate menus faster than dragging your mouse around and clicking on-screen icons.

If that sounds like something you'd want from a new mouse, you're in luck. There are dozens of mice out there sporting extra buttons and other MMO-friendly features, and a bunch of them are on sale right now--including one of our favorite gaming mice, the Logitech G502 Hero. This wired mouse features 11 programmable buttons, and you can grab it from Amazon for $42.29, which is nearly half off its normal $80 price.