With the introduction of the Naga Epic, Razer has split its highest gaming mouse tier into two segments. The Mamba is still the top-of-the-line general-purpose gaming mouse, but it’s now joined by the Naga Epic, which runs the same high MSRP ($130) but offers features more tailored to MMO gamers. That’s a lot of cash—is the Naga Epic worth it?

It’s recently become popular for major PC game releases to be accompanied by their own line of branded peripherals, custom designed by big-name peripheral makers like Razer and SteelSeries. Frequently, these products are no more than a reskinning of a popular model, as is the case with the Call of Duty: Black Ops Stealth Mouse, which is essentially a rebranded Cyborg R.A.T. Other times, the tie-in is more substantial, as with the SteelSeries WoW mice, which feature unique, game-inspired designs as well as features and software intended to help you play the game better.

So, when we got the complete set of StarCraft II custom peripherals in for testing from Razer, we were curious to see whether they would be more like the former or the latter scenario. What we found out was surprising.

The Razer Lachesis gaming mouse originally launched in 2007, with a dramatically curved, ambidextrous design and a 4,000dpi sensor. Three years later, Razer has released a new Lachesis, which is not so much a sequel as a refinement of the original.

The most important change in Lachesis 2.0 is the 5,600dpi sensor, which puts it on par with other top-end gaming mice. We don’t usually play at such a high sensitivity, but we tested it at dpi levels across the whole spectrum and found the Lachesis responsive and reliable.