The Power Gem gives the owner access to all power and energy that ever has or will exist, and can back the other gems and boost their effects.
When the Red Skull flees to Earth after stealing the Power Gem from Thanos, who had earlier used it to destroy an entire planet. The stone ends up being used to revive the Arsenal, who subsequently loses it to the Infinity Gauntlet-wielding Thanos. However, the Avengers manage to stop Thanos temporarily through Arsenal's sacrifice, which launches him halfway across the galaxy. However, they subsequently learn that the other stones have been scattered over the planet by the destruction of Red Skull's escape ship.
- The red Power Gem gives the owner access to all power and energy that ever has or will exist, and can back the other gems and boost their effects. Its most basic powers grant its user unlimited stamina and can increase the user's strength to unlimited levels depending on how much the gem is drawn upon. It allows the user to duplicate practically any physical superhuman ability and become invincible. It can also be used as an unlimited power supply for any machine.