Atem's Gauntlet is a special wrist guard that only Atem is seen using throughout the entire game.

It appears to be a piece of salvaged Watcher armor, yet it is much stronger than Watcher armor, as it can withstand the blast of a Disintegrator (this is only shown once in the entire game, near the middle of the second Episode of the game, around the second chapter). This makes it a very useful weapon, made even more useful by Atem's special Adept skills.