Challenges

At level 30, you will be directed to the Challenge Terminals in your base of operations. There are two in each wing giving daily missions that award 125 renown with that faction. Each one is an earlier instance from the game with the difficulty increased to level 30.

Races also are categorized as challenges in the game.

Rewards
Upon completing a Challenge, players will receive Marks of Triumph, in addition to any loot the boss happens to drop. Additionally, if the Challenge was marked as Daily by a star, players will receive extra Marks. A player gets a weekly Award Box when he finishes a Challenge for the first time of the week.
 * Completion of a Tier 1 Challenge rewards 1 Marks of Triumph daily and Award Box weekly.
 * Completion of a Tier 2 Challenge rewards 5 Marks of Triumph daily and Award Box weekly.
 * Completion of a Tier 3 Challenge rewards 25 Marks of Triumph daily and Award Box weekly.

Tier 5 Simulation
Meta Wing Hero challenges are the Doctor Psycho and Spectre instances.

Magic Wing Hero challenges are the Felix Faust and Raven instances.

Tech Wing Hero challenges are the Harley Quinn and Poison Ivy instances.

Meta Wing Villain challenges are the Supergirl and Power Girl instances.

Magic Wing Villain challenges are the Doctor Fate and Raven instances.

Tech Wing Villain challenges are the Robin and Huntress instances.