Believe it or not, there was a time in the Marvel Universe when Red Hulk, the Venom symbiote, and the Spirit of Vengeance all bonded together into one seriously powerful character. The whole thing went down in an event called the Circle of Four.
Blackheart, the son of the demon Mephisto, decided to spend his time trying to overthrow his dad. To do this, he decided to unleash Hell on Earth, but was only able to bring a small part. He found hiimself battling the likes of X-23, Venom, REd Hulk, and Ghost Rider, all of whom he killed and sent to Hell.
When they get there, Mephisto offers them a new chance at life so they can live and defeat his son. They accept and Flash Thompson hands over Venom to the Red Hulk as he also take on the Spirit of Vengeance becoming the new Ghost Rider.
When Ghost Rider is also rocking the powers of Red Hulk and Venom, you know he's going to be a tough guy to beat. That's a lesson Blackheart learned during the event when the newly-formed Ghost Rider defeated him. At the end, Venom returned as did the Spirit of Vengeance, returning things to normal.
Jonathan is a graphic artist, illustrator, writer, and game designer. Jonathan retired from the U.S. Army in 2017 and enjoys researching and writing about history, science, theology, and many other subjects. He writes for ScreenRant, CBR, NerdBastards, Listverse, Ranker, WhatCulture, and many other sites online. You can check out his latest on Twitter: @TalkingBull or on his blog: jonathanhkantor.com