History:

(Guardians of the Galaxy I#45 (fb) - BTS) - Slagg was a power player in his home quadrant. He was well protected by guards and it was hard to get a meeting with him.

(Guardians of the Galaxy I#45) - On a distant planet Hollywood (Simon Williams) beat up two guards in front of Slagg's home, then pushed open two giant doors to gain entrance. Though Slagg didn't know at first who broke into his home he wasn't surprised when he saw it was Hollywood. Slagg didn't like it when Hollywood implied he was ugly and asked Hollywood to choose his next words wisely. Hollywood didn't care about Slagg's warning, called him fatso and asked Slagg if he had seen Doctor Doom because Hollywood knew nothing happened in this quadrant without Slagg's knowledge. Slagg corrected Hollywood that nothing happened without his permissiona and then asked Hollywood why he should give a has-been like him any information. Hollywood took into the air, punched Slagg in the throat and threatened to give him a full tracheotomy if Slagg didn't tell him what he wanted to know. Slagg swore Doom had not been seen in this quadrant and promised to tell Hollywood as soon as he was spotted. Hollywood left, but Slagg promised he would get his revenge on Hollywood and anyone wearing the Guardian Star. He then contacted somebody else interested in the whereabouts of Hollywood (it was Overkill as seen in #46-48).

(Guardians of the Galaxy I#60/2 (fb) - BTS) - When Slagg heard Yellowjacket of the Guardians of the Galaxy was looking for a meeting with him he sent Skellig to capture her. Skellig paid a barman to drug her, so he could easily deliver her to Slagg.

(Guardians of the Galaxy I#60/2) - Slagg woke up Yellowjacket, who had been tied to a chair with cables. He still held a grudge against anyone wearing a Guardian star for what Hollywood did to him. When Yellowjacket tried to use the Pym Particle dispensers in her gauntlets Slagg revealed they had been removed. Considering her helpless Slagg was going to interrogate her, but Yellowjacket managed to reach a hidden Pym Particle pill in her beltpack and flip it into her mouth. She grew to Slagg's size and started beating him up until he hit her with his tail. Growing to Slagg's size put some strain on Yellowjacket's heart and she did her best to end the fight quickly. After kicking Slagg in the head she put him into a chokehold and threatened to squash him after feeding him a shrinking pill if he didn't surrender. Slagg surrendered and promised to aid Yellowjacket in any way possible. She asked him to make a few calls for her.

(Guardians of the Galaxy I#60/2 - BTS) - Slagg put Yellowjacket in touch with the time travelling corporation Chronolia. Before returning to her timeline on Earth-616 using Chronolia's service, Yellowjacket left a message for the other Guardians of the Galaxy to warn them of Slagg and his grudge against everyone wearing the Guardians star.