John Stewart (comics) - Powers and Abilities

Powers and Abilities

• John Stewart’s power ring provides him with the abilities of all other Green Lanterns; these abilities include flight and limited invulnerability.
• As with all other Green Lanterns, the ring is a weapon of the mind and powered by will, therefore only limited to the wearer’s imagination.
• Stewart was briefly taught by Ganthet on how to reroute his mind to think in the 'language of the spheres'- the first language of the universe- to evade telepathic detection by Fernus, the 'Burning Martian' identity of the Martian Manhunter; although the intensity of this method meant that John couldn't use it for more than a minute without burning his mind out, it has never been specified if this means that he cannot use it again or if he could use it at some future date if enough time has elapsed since his last use of it.
• Like all Green Lanterns, Stewart's personality affects his ring's creations, giving them a solid, architectural quality. In Green Lantern: Rebirth, Hal Jordan remarks that "everything John builds is solid". He also remarked that Stewart is the best flyer in the Corps.
• In Green Lantern (vol. 4) #26, it was shown that John's willpower exceeds the limit of his ring (when he tried to recreate a planet from scratch), a feat that had not been depicted before this point.
• John is a discharged member of the USMC with full combat training. In addition, he is an expert sniper.
• When he temporarily used Indigo-1's ring as a member of the Indigo Tribe, John was capable of accessing the powers of all Lantern Corps rings in his vicinity, even managing to harness the power of the Black Lantern Corps by drawing on the residual Black Lantern energy around Mogo's core. John is not shown to be significantly affected by the Indigo Ring's mind altering capabilities, although this could be because he was already capable of feeling compassion.

As well as his obvious powers as a Lantern, John has recently begun to demonstrate an ability to kill when he is certain the situation requires it, destroying Mogo in order to save the universe from the army of Krona-controlled Green Lanterns that Mogo would have created and later killing a fellow Lantern who was about to give in to torture and reveal vital information to their enemies.