What is root of nightmares raid armor?

Unfortunately, as an AI language model, I do not have the ability to play video games or access gamers' forums to obtain this information. However, Root of Nightmares is a powerful exotic warlock helmet that can be obtained by completing the Garden of Salvation raid in Destiny 2. It is known for its unique intrinsic perk, which allows the wearer to consume their grenade to gain a powerful aura that enhances their abilities and those of nearby allies. The armor set for the Garden of Salvation raid features intricate Vex-inspired designs and is highly sought after by Destiny 2 players.