Today's Fact
Las Vegas, a portal to Hell, and a solution nobody sane would propose: stack a symbiote and a Spirit of Vengeance on top of a Hulk.
In the Circle of Four storyline, Blackheart tried to expand Hell into Las Vegas, and the four anti-heroes on scene — Flash Thompson’s Agent Venom, the Red Hulk, X-23 and Ghost Rider Alejandra Jones — died, bargained with Mephisto, and came back marked. Their counterattack, in Venom Vol. 2 #13.4-14 (2012), was not teamwork in the usual sense. It was a merger.
Flash handed the Venom symbiote over to the Red Hulk, and the Spirit of Vengeance was passed into the same enormous body. The result was a single composite fighter — gamma muscle wrapped in living symbiote, burning with hellfire — who announced the arrangement in the only grammar available: “We Am Smash for Vengeance!”
The fusion worked because each layer covered another’s weakness, and it ended the moment the job did. The composite turned Blackheart’s own demonic mirror against him, conjuring the demon’s angelic antithesis, and once the portal closed the pieces went home: the Spirit returned to Alejandra and the symbiote crawled back to Flash, who parlayed the day into a place on the Secret Avengers.
Why It's Obscure
A one-issue fusion built from three separate franchises’ powers — so excessive that later retellings still have to convince readers it is canon.
Gallery
The Circle of Four’s own finale cover gathers the whole merged-team ingredients — Agent Venom, Red Hulk and the flaming Ghost Rider in one frame.



Sources
Every fact on this page was checked against at least two independent sources before publication.
Bullpen Bulletins
- Marvel Once Merged Hulk, Venom & Ghost Rider — CBR Account of the Circle of Four fusion in Venom #13.4-14, the quoted battle cry, and the powers returning to their owners.
- What Venom Looks Like Fused With Red Hulk & Ghost Rider — Screen Rant Summary of the merged hero shooting fiery webs, defeating Blackheart with his antithesis, and separating after the battle.
- Venom #14 Review — Spider-Man Crawl Space Contemporary review confirming Red Hulk merged with the Spirit of Vengeance and the symbiote for the Circle of Four finale.