Importantly, Sentry was created as an answer to DC’s flagship hero, Superman. Moreover, the context of the character’s creation involved a hoax concerning artist Artie Rosen’s sketches of Stan Lee’s forgotten sketches for a Marvel Silver age superhero. Certainly, the character debuted in Sentry (2000) #1, with great fanfare.

To promote the Marvel Superman moniker, Brian Bendis tells the origin story of Sentry in Dark Avengers (2010) #13. His civilian identity is Robert Reynolds, a drug addict who breaks into a Project: Sentry lab and ingests the Super Soldier Serum. Incredibly, he survives and gains the power of a million exploding suns. Later, he creates a costume and begins a superhero career.

Unfortunately, Sentry’s central hubris is his mental instability. With his bond to the vampiric entity named the Void, the Sentry may be the most powerful hero in the Marvel Universe. In Siege (2010) #4, Norman Osborn manipulates him to invade Asgard and battle Earth’s heroes. Tragically, he begs the God of Thunder to kill him in the Thor vs Void Sentry battle.

Certainly, Sentry has proven that he is Marvel’s Superman. When the situation is critical, the Marvel Universe calls upon him. In Uncanny Avengers (2014) #21, Sentry with Rogue’s help saves the world from catastrophe. In a times of crisis, the Unity Division pools together the powers of all Avengers and X-Men into Rogue. Alongside the X-Woman, he stops Exitar‘s foot from stomping the Earth to destroy it.