Scarecrow(Earth-16)

Scarecrow is an antagonist in Nightwing: Shadows of the Past, Present and Future and member of the Crime League.

Jonathan Crane, aka Scarecrow is a master of fear and villain based in Gotham City.

History
Scarecrow operated out of Gotham City. Scarecrow was taken down several times after Dick Grayson became Nightwing. 3 years before the defeat of The Reach on Earth, he was approached by Ninja Master and made an offer he couldn't refuse. In return for getting revenge on Nightwing, he helped Ninja Master take down the heroes.

He would have brushes with the Court of Owls and helped eradicate a number of them alongside Ninja Master and Metallo.