The Monitor

''NOTE: To read about the DC-canon character, visit The Monitor (Arrowverse Wiki). This is an alternate version from Reality-F302.''

Mar Novu, known as The Monitor, is a character from the DC Universe who was important in the end of Fortnite: Barcino and the beginning of Galaxy Legends. He fought against the Antimonitor, his antimatter-created brother, who also killed him. His current status is unknown.

As a scientist
The Monitor, born as Mar Novu, worked as a scientist with his wife Xneen at Maltus, his home planet. During an experiment to travel to the dawn of time (the beginning of everything), he accidentally created a rift between the matter multiverse and the antimatter universe. This alternate world created an alternate version of himself: The Antimonitor.

Becoming the Monitor
Novu, exposed to the chronal radiation at the Antimatter universe, gained cosmic powers which made him to be considered as a god. With this on his grasp, he created a prison just for the Antimonitor while he prepared everything to fight his nemesis when he eventually escaped, as he could foreshaw the future.

First contact with The League
Mar Novu started searching a group of heroes who could defeat his doppelgänger. While he did this, he tested different Earths, presumably destroying them because of the heroes failure. He finally arrived at Earth-1, home of The Flash and Green Arrow, and tested them, together with Supergirl from Earth-38, to finally decide that they were the chosen heroes to finish with the Antimonitor.

Beginning of the end
Nash Wells, 1 year later, accidentally opened the Antimonitor's prison, located at Earth-1, and freed up Monitor's double. Knowing this, Novu, with some help of Harbinger, his right hand, recruited all of the heroes he could, including some from Earth-38 (Supergirl's Earth).

Meeting the Seven (non-canon from DC)
During the Crisis, several Earths got destroyed, including Earth-218, Fortnite's Earth. He could barely save two persons from that universe: The Visitor and The Scientist, who joined him and protected the rests of the Barcino island from Earth-1, where they placed Gotham City with a rift beacon. Unfortunately, Earth-1 disappeared and the Visitor was disintegrated. Unlike him, the Scientist was rescued and brainwashed by the Antimonitor.

Death
Finally, Mar Novu was murdered by his nemesis at the Waverider, the League's ship.

Reappearance after The Last Stand (non-canon from DC)
As seen in The Last Stand, the Monitor was still alive, and gave The Scientist a bit of his power so he could save the Barcino Island from Eobard Thawne. It's still unclear if this version of Novu was just his past self who just travelled in time or is in fact Mar Novu's present incarnation, which is not very possible as of his dead during the Crisis.

Equipment

 * Chronal Radiation Protection Armor: A reminder from a past live. This armor, now upgraded to let him use his abilites with no problems, is a memory from his life as a scientist with his now deceased wife Xneen.
 * Book of Destiny: A book capable of doing anything thinkable. If a human being use this, it can turn crazy. There are some things, such as recreating destroyed worlds, that even Novu can't do without becoming crazy.