What Would be your Legion of Doom using only characters from the shows?

General Discussion
1

TITANS, Arrow, Flash, Legends of Tomorrow. Supergirl, Gotham

2

Lex Luthor (Coming soon on Supergirl)
Jeremiah Valeska/ The Joker (Gotham)
Edward Nygma/The Riddler (Gotham)
Jonathan Crane/Scarecrow (Gotham)
Leonard Snart/Captain Cold (The Flash)
Brainiac (Krypton)
Gorilla Grodd (The Flash)
Winslow Schott/Toyman (Supergirl)
Cyrus Gold/Solomon Grundy (Gotham)

3

Reverse Flash, Grodd, Metallo, Vandal Savage, Malcolm Merlyn, Damien Darhk, Maxwell Lord, Captain Boomerang, Silver Banshee, Savitar and Solomon Grundy