‘Tis the season for new big-ticket video games, and increasingly, now is also the season for new experiments in DLC and add-on purchases for retail titles. We don’t normally spotlight add-on packs if they’re just cosmetic, but today’s reveal of a new “loot box” for October’s Gears of War 4 got Ars’ attention—and not necessarily in a good way.

Today’s new Gears box is a cross promotion with hip-hop duo Run the Jewels, who had already released a music video connected to the game in September. Microsoft is charging a whopping $20 for the add-on, which includes the following: two skin unlocks (featuring RTJ members Killer Mike and El-P, with unique spoken dialogue), a single teal-blue skin for every weapon in the game, two emblem designs that can be applied to player profiles (only seen between matches), and two one-time XP “bounties” that can be claimed when playing an online versus match as either RTJ member.