The Avengers have had a tough time while battling the biggest threats in the galaxy.
The Avengers have had a fight with almost everyone from Thanos, to Galactus, to Dark Phoenix. It is assumed that their next threat could be the deadliest of all.
In Venom #3 by Donny Cates and Ryan Stegman, Knull has appeared as an ancient being. He is responsible for establishing symbiotes as weapons for his control.
He does so with the help of Carnage who is his servant. The villain built the god-killing Necro sword and plans to encircle the whole universe. With Knull along with his symbiotes, coming to Earth, Eddie Brock eventually restored a cosmic threat in the Avengers.
Venom #25 by Cates and Mark Bagley notices Brock, where it is indicated that he is cramming in the Avengers on what he has been through with Knull, along with Carnage, and the symbiotes. Brock in the book says, “I need to tell you about Knull,” who gets an “Odin’s beard,” reaction out of Thor from the time he has got on against an unidentified Knull in Jason Aaron’s Thor: God of Thunder series.
Brock Faces Threat With Avengers
Captain America asks about what exactly Knull is, and Brock tells him “It’s a bad cap.” Brock clarifies that while Knull is the enormous threat, he realizes other tremors in the air of other symbiote-related villains as they are coming as well. “I don’t know if we’ll survive in one piece… if we survive at all…”
Eddie Brock has gone through a lot. Ultimately inviting him for an assisting hand is the right move by him. Knull has universe-destroying energy potential. Brock will not be facing him along. He will now be having the support of the team.
It seems the upcoming battle would be larger than that of the Venom. It is time for Brock and the Avengers to face the threat and come out victorious
