Kilowog

Kilowog was a member of the Green Lantern Corps responsible for training new recruits.

History
In 150,081 CMT, Ynot crippled Hal Jordan and took his Green and Blue Lantern Rings for himself. By 150,083 CMT, two more Green and Blue Lantern Rings had left their repository to search the universe for a new candidate to replace Jordan in both the Green Lantern Corps and Blue Lantern Corps. These two Lantern Rings selected Batman as Jordan's successor, attached themselves to his fingers, and transported him to Oa to be trained by Kilowog for induction into the Green Lantern Corps. By sheer coincidence, a Yellow Lantern Ring also selected Batman as its new bearer at the same time and attached itself to one of his fingers alongside the other two Rings.

Kilowog recognized Batman and asked him what had brought him to Oa. Batman replied that he had been trailing a murderer when he unexpectedly received Green, Blue, and Yellow Lantern Rings and suddenly found himself transported to the Green Lantern homeworld. Remembering that Lantern Rings sometimes sought out new bearers if their previous bearers were killed, Batman asked Kilowog who had died to cause the Rings to seek him out. Kilowog found humor in the fact that Batman did not know something for once, but explained that Hal Jordan had been crippled and that his attacker had stolen his Rings. Kilowog added that Jordan claimed that his attacker wielded Rings of the entire Emotional Spectrum plus one that had never been seen before. Kilowog asked Batman what he intended to do with his new Lantern Rings, but Batman replied that he would surrender them because he did not "need superpowers". This thought unsettled Kilowog, who commented that that notion was the reason why Batman was the most frightening member of the Justice League.

Lantern Ring Powers

 * Energy Construct Creation: As a Green Lantern, Kilowog could use his Ring to create transparent bright green constructs by tapping into his own willpower. All Green Lantern constructs can take any form that the bearer can imagine as long as they have the willpower necessary to generate the construct. Kilowog's constructs existed only as long as he was maintaining their existence through his own willpower and concentration.
 * Flight: Kilowog's Green Lantern Ring enabled him to fly effortlessly through any environment at incredible speeds, protected by a personal forcefield.
 * Personal Forcefield: Kilwog's Green Lantern Ring automatically created a forcefield around him to protect him whenever he travelled through an environment that would be dangerous to his species, such as the vacuum of space or the crushing pressures of ocean depths. The Ring also created an inner atmosphere inside the forcefield that kept Kilowog supplied with air and stabilized his body temperature whenever he travelled through environments of extreme temperatures. This forcefield was also capable of protecting him from cosmic radiation, microscopic particles, and debris which would ordinarily be fatal should it strike him while mid-flight.