Blackjack was next seen working for Halfworld leader Lord Dyvyne, in the capture of the Felisian princess, Lynx. They were on their way to deliver her to Man-Beast in exchange for the bounty, when they came across a small cargo ship that was on a restricted trade route. Interested if the vessel carried any valuables, Dyvyne ordered Blackjack to have his brigade tow the ship into their bay not knowing that Rocket Raccoon transported to the prison section of Dyvyne's ship to rescue the princess.
Rocket opened Lynx's cell only to be confronted by Jack and his bunny brigade. Rocket asked him why he was back in the service of evil but he assured him he wasn't, it was just a business opportunity- nothing personal. Blackjack fought against Lynx and Rocket until Dyvyne interrupted the battle with the idea of handing over the both of them to Man-Beast for a much larger bounty, his choice of any trade route. But Groot and Wal-Rus quickly joined the battle, wiping the floor with Blackjack, Dyvyne and his brigade, so they could make their escape.
Blackjack would later be revealed to be Rocket's doppelgänger. He considers himself to be in a state of vendetta against his fellow Halfworlder for interfering with his mission to capture and assassinate Princess Amalya, destroying his reputation as a mercenary. Luring Rocket to a remote planet, Blackjack paid off Rocket's allies and blew Groot apart with a grenade. He then proceeded to taunt Rocket before revealing himself and summoning his Black Bunny Brigade. Their fight was soon interrupted by Amalya and the Ex-terminators. Realizing that his target was right there, Blackjack contemplated aloud that he could still take her out, allowing him to restore his reputation and collect her bounty. However before he could act, he was shot by her. O'Hare was subsequently blown up when Rocket deflected a missile he had fired back at him.
Having survived the explosion, O'Hare relaunched his enterprise as Black Bunny Solutions, where he was joined by novice hero Prince of Power, who came to see Blackjack as a mentor. Following the apparent death of Guardians of the Galaxy leader Star-Lord, the team split into two, with the half led by Gamora returning the team to its mercenary ways. Blackjack and the Prince joined Gamora's Guardians when they acted as middlemen for a mercenary gig for of Castor Gnawbarque III to kill Rocket and stop the sabotaging of an energy-converting machine named the D-Type Converter at the hands of the other Guardians. Although O'Hara was positioned to kill Rocket for several minutes, Gnawbarque held him off on taking the shot since he wanted to savor the moment. Eventually, the tree where O'Hare was set up revealed itself to be Rocket's teammate Groot, who foiled the attempt on his friend's life. When both Guardians teams joined forces to fight the Olympians, O'Hara was absent from the battle, with Gamora mentioning that he was busy at the time.
- 16 appearance(s) of Blackjack O'Hare (Earth-616)
- 2 minor appearance(s) of Blackjack O'Hare (Earth-616)
- 3 mention(s) of Blackjack O'Hare (Earth-616)
- 20 image(s) of Blackjack O'Hare (Earth-616)
- 1 quotation(s) by or about Blackjack O'Hare (Earth-616)