Maugan Ra is one of the most badass Eldar character. He is is the founder and Phoenix Lord of the Eldar's Dark Reaper Aspect Warriors. One of his main feat was to single-handedly triumphed over a Tyranid swarm from Hive Fleet Leviathan. You can learn more about him here https://warhammer40k.fandom.com/wiki/Maugan_Ra

When I learned about him I though it wouldn't be a bad idea to make some sort of Doom style game where he would slaughter dozens of Tyranids. It would also be nice to have an Eldar since Orks and Necrons already have a bunch of games about them or where they play a main role. I want to show to GW and the studios developping games for them that we would love to play a game centered on the Eldar.

Here are some infos about his arsenal:

His weapon is called "The Maugetar" - Maugan Ra found, in his studies of warfare, that a weapon can be used as carefully as a scalpel, be it a blade or a ranged weapon. As such, Maugan Ra constructed and wields the Maugetar ("Harvester" in the Eldar Lexicon), an ancient and more potent variation of the standard Eldar Shuriken Cannon with an in-built Executioner Power Weapon for melee combat. This scythe-like weapon was built into what is essentially a Shrieker Pattern Shuriken Cannon. The mind-linked discs it fires are large enough to decapitate a swathe of foes one after another before vanishing into nothingness, and the curved blade it sports is worthy of its grim reputation.

And his armor is called "The Phoenix Armour" - The legendary Phoenix Lords wear ancient, invaluable Aspect armour so finely wrought it is proof against almost any weapon. Maugan Ra's armour is composed of fragments of the Dark Reaper Aspect Shrine of Altansar. According to Eldar legends, Maugan Ra emerged from the Fall encased in black armour "sculpted with golden bone" wearing a skull helm, the "very image of Death itself."