The Story: "Testing of A Hero" by Gerry Conway, Dick Dillin, and Frank McLaughlin. We open on a rooftop in Metropolis, with several members of the JLA following the exploits of a new hero, Black Lightning!
Lightning makes quick work of some bank robbers, and as he carts them off, Green Arrow stresses that Black Lightning is JLA material.
When he mentions that Lightning is "cool, smart, brave...and black!", The Flash objects suggesting that Green Arrow was saying they admit a "token black." Uh-oh!
This leads to Barry and Ollie squaring off, with The Flash taking a particularly hard stand on Green Arrow's political leanings:
Superman calls an end to the nonsense, and moves forward with the plan to test Lightning's mettle.
Meanwhile, a costumed baddie named The Regulator, who seems to be able to control--eww--rats, swears vengeance on society and all those who have wronged him!
Back at Metropolis Police HQ, Lightning laughs at the suggestion that there might be an "anti-vigilante" law passed soon, since of course that would affect Superman, too. He heads out, but is soon attacked by two bizarre beings, one an energy being, the other a type of she-ape!
Lightning defeats them both, and calls the cops to pick them up. He leaves before he sees what they do, that something is happening to these weirdos...Meanwhile, the Regulator's army of rats start to attack S.T.A.R. Labs.
Lightning is attacked again, by another strange being, a sort of invisible man. No sooner does he defeat this foe then he is attacked by yet another costumed stranger, this one dressed like your typical swashbuckler. He almost ends up killing this guy, before he calms down, and the swashbuckler reveals himself to be...Green Arrow!
Suddenly all the JLA show up, telling him they were testing him, and he passed with flying colors. Welcome to the Justice League, Black Lightning!:
Meanwhile, we see that S.T.A.R. Labs has been taken over by The Regulator. To be continued!
Roll Call: Superman, Flash, Green Lantern, Green Arrow, Zatanna
Notable Moments: Black Lightning would've made a fine addition to the JLA, at the same time Conway gives us a plausible reason as to why he doesn't.
The menacing roles the JLAers assume are hilarious, and their super-silly names (Primak, The Trans-Visible Man) seem like a very subtle dig on Conway's part on how the JLAers see themselves.
The little moment Black Lightning has with the police inspector about not worrying about any law that would also affect Superman is nice, and used again by Alan Moore during his brilliant Swamp Thing run. It's a moment that relies upon the readers familiarity with just how beloved Superman is in this universe.