It's a partnership that has become commonplace in recent years between Twitch and publishers. Thanks to Amazon's platform dedicated to video games, Prime Gaming (formerly Twitch Prime), players are offered exclusive games, cosmetics or any other form of in-game content. This will notably be the case for Valorant, which will be offering a good number of rewards from 16 September next.
If you have a Prime Gaming or Amazon Prime subscription, you simply have to link your Amazon account and your Riot Games account to receive the associated rewards. For now, Valorant is just offering a keychain in the colors of the latest agent, Killjoy. Nevertheless, it's likely that other rewards will follow as an exclusive weapon skin for example.