Past Challenge Characters and Requirements

Aquaman/Injustice 2

 * Date: 5/11/2017-5/18/2017.
 * Requirements:
 * Red Son Character
 * Arkham Character
 * Batman

Batman/Blackest Night

 * Date: 5/18/2017-5/25/2017.
 * Requirements:
 * Catwoman
 * Nightwing
 * Joker

Superman/Injustice 2

 * Date: 5/4/2017-5/11/2017.
 * Requirements:
 * Harley Quinn
 * Solomon Grundy
 * Doomsday

??

 * Date: 4/27/2017-5/4/2017.
 * Requirements: