DC ’s adaptation of VibraniumcalledPromethiumis a hefty substance that can canalise any energy — include the willpower construct ofGreen Lantern — into a weapon system that can efficaciously take down theJustice League . It ’s just too unfit it ’s manage by the mercenary known as Deathstroke , or else it’dreallycome in William Christopher Handy .

Seen in action in 2018’sJustice League # 43 , by Christopher Priest and Pete Wood , this issue acts as the finale to this particular volume ofJustice Leagueas the best of DC ’s best go toe - to - toe with Slade Wilson aka Deathstroke the Terminator . Wielding the might of his Promethium Blade and Ti staff , Deathstrokebattles it out with heroes who are heroic to stop him dead in his tracks after he take on down Superman , Aquaman , and more in the blink of an middle .

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Soon facing two Green Lanterns in Simon Baz and Jessica Cruz , Deathstroke has seemingly met his match on the field of battle . But after utilizing his smarts and current equipment tailored for an occasion such as this , Deathstroke raise that Green Lanterns can become anti - Justice League artillery with the right kind of supporter from a baddie like himself .   Shootingblasts of unripe willpowerat Deathstroke , Slade well block off their attack with his Promethium arm . Saying that his steel “ engulf all form of vigor , ” Deathstroke confirm that all he has to do is canal said energy into his titanium staff , redirect it at his enemies , and in the words of this extremely skilled mercenary , " down goes the immature squad ! ”

A serious combination of weapons on their own , the fact that DC ’s interpretation of Vibranium can be repurposed to take out the Justice League without breaking a sweat is a openhanded trouble for a group of heroes that can usually deal with whatever they fall up against with repose . Add in the fact that if Promethium is in play , Green Lanternsneed to stay well forth from any and all penis of the League as they can end up being used against the squad ( and as shown here , themselves as well ) , and you have a kind of overpowered weapon system that Deathstroke — and anyone who can get their hands on Promethium — can exploit in the spoiled way possible .

So while Promethium luckily is n’t lie around in enough quantities to make Deathstroke ’s tactics something that needs to always be disturbed about , when coupled with the energy of a Green Lantern , it ’s still pernicious enough to matter . Green Lanternsshould always steer clear of theJustice LeaguewhenPromethiumis around , or at the very least do their best to direct their constructs away from its debilitating reach .

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Green Lantern Defeats Justice League

Deathstroke uses Prometheum to beat Justice League

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