What was the weakness of Hal Jordan aka Green Lantern in the movie Justice League: Doom which was exploited by Batman which was used later by Vandal Savage to neutralize or kill him?
1 Answer
Batman explained it to Hal in the mine after revealing it was all a set-up..
BATMAN: You were dosed with a synthesized version of the Scarecrow's fear gas....because will is the source of your strength.
HAL: And fear is the enemy of will.