Toxin: the third symbiote, more powerful than Venom and Carnage

In the long line of symbiotes that have shaped Spider-Man's world, two names tower above all the rest: Venom and Carnage. But there is a third symbiote, born directly from Carnage, whose potential theoretically surpasses that of both his ancestors combined: Toxin. More powerful than Venom, more stable than Carnage and, above all, carrying a rare moral ambiguity - Toxin is the symbiote who could have become a hero. His story, that of police officer Patrick Mulligan and then of other hosts, is one of the most fascinating and least known in the whole symbiote saga. Here is the complete portrait of Venom's 'grandson'.

The birth of Toxin: the offspring of Carnage

To understand Toxin, you have to trace the symbiote family tree back to the start. The original black symbiote bonded with Spider-Man before becoming Venom with Eddie Brock. Venom then spawned an offspring which, on bonding with serial killer Cletus Kasady, became Carnage. Toxin is the child of Carnage - and therefore the 'grandson' of the original symbiote.

First appearing in 2004 in the Venom vs. Carnage mini-series written by Peter Milligan, Toxin is born in dramatic circumstances. Carnage, aware that his own offspring could pose a threat to him, tries to kill the newborn symbiote the moment it arrives. That is the whole paradox of Toxin: he is rejected and hunted by his own 'father' Carnage, while Venom, the 'grandfather', tries instead to take him in and turn him into an ally. The infant symbiote thus finds himself at the heart of a family war between the two most dangerous symbiotes in the Marvel universe.

This lineage is no mere piece of trivia. According to symbiote mythology, each generation is more powerful than the last. If Venom is stronger than the original symbiote and Carnage more powerful than Venom, then Toxin - the third generation - theoretically holds potential greater than both of his ancestors. That is what makes him an entity as coveted as he is feared.

Toxin's father

Cletus Kasady as Carnage figure

Carnage spawned Toxin - then tried to destroy him. This collector's figure captures all the scarlet madness of the symbiote that gave rise to the most powerful of the bloodline.

€99.90 View the figure

Patrick Mulligan: the police officer who becomes the symbiote

Toxin's first host is Patrick Mulligan, a New York police officer, a husband and a father-to-be. His encounter with the newborn symbiote makes him the bearer of an entity of phenomenal power - but also the guardian of a being that could have become a weapon of mass destruction. Choosing a police officer as the host is central: unlike Eddie Brock, eaten up by resentment, or the purely nihilistic Cletus Kasady, Mulligan is a fundamentally good man, devoted to protecting others.

That goodness in the host changes everything. Venom, alarmed by Toxin's birth, gives Mulligan a paradoxical piece of advice: the way he raises the symbiote will decide what it becomes. If Mulligan passes his values on to the symbiote, Toxin could become a force for good; if he fails, Toxin will become the universe's worst nightmare. The Toxin symbiote thus becomes a metaphor for upbringing and moral transmission - a rare and profound theme in the usually violent register of symbiote stories.

Mulligan fights constantly to stay in control. The symbiote pushes him towards violence, whispers radical solutions to him and permanently threatens to overwhelm his will. That inner tension between the man of integrity and the predatory entity places Toxin in the great tradition of the struggle between the human and the monster, already explored in the relationship between Spider-Man and the black symbiote. But with Toxin the stakes are higher still: it is not just a question of surviving, but of shaping the soul of an immensely powerful being.

Powers greater than those of Venom and Carnage

Toxin has the full set of classic symbiote abilities - superhuman strength, generating tendrils and organic blades, camouflage, wall-crawling, accelerated healing. But he takes them to a higher level, in keeping with the generational logic of the symbiotes. Where Venom and Carnage are undetectable by Spider-Man's spider-sense, Toxin shares that immunity, which makes him an opponent the web-slinger cannot feel coming.

Toxin also has unique abilities that neither Venom nor Carnage has mastered. He can sense and track other symbiotes at a distance, following their presence like a living radar. His biomass is exceptionally resilient, and his raw power, when fully unleashed, exceeds that of his ancestors. That superiority explains why Carnage was so determined to destroy him at birth and why Venom was so determined to win him over: Toxin represents the peak of symbiotic evolution in his bloodline.

That power places him, in the pantheon of the great symbiote threats, close to cosmic entities such as Knull, the god of the symbiotes. Toxin does not have Knull's divine scale, but on an earthly level he embodies the maximum potential a single symbiote can reach.

Toxin's grandfather

Spider-Man figure - Venom

Venom, Eddie Brock's original symbiote, tried to turn Toxin into an ally against Carnage. The must-have piece for any collector of the symbiote bloodline.

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Toxin, the anti-hero: the symbiote who wanted to do good

What sets Toxin radically apart from Venom and Carnage is his moral path. Under Patrick Mulligan's control, Toxin acts as a vigilante - fighting crime, protecting the innocent, even standing against Venom and Carnage. He is one of the very few symbiotes to have genuinely worked for good, which makes him an anti-hero in the purest sense of the term.

That heroic dimension is never permanently secured. Toxin is forever teetering on the edge of the abyss, and depending on the hosts who carry him after Mulligan, he sometimes tips over into violence and destruction. The symbiote, by its very nature, amplifies its bearer's impulses. With a virtuous host it becomes a protector; with a corrupted host it turns back into the monster Carnage feared. That moral plasticity makes Toxin a narratively precious character: he raises the question of whether a being designed for destruction can be redeemed by love and responsibility.

This question of symbiotic redemption echoes directly in the story of Anti-Venom, Eddie Brock's white symbiote, another striking exploration of the idea that a symbiote can serve the good. Together, Toxin and Anti-Venom form the bright side of a symbiote mythology usually given over to darkness.

The successive hosts: from Mulligan to Eddie Brock

Over the decades, the Toxin symbiote has changed bearer, and every host has bent its nature. After Patrick Mulligan, the symbiote passes through several hands, some heroic, others criminal. One of the most striking turning points comes when Eddie Brock - the former Venom and Anti-Venom - becomes the bearer of Toxin himself for a time. That fusion brings the complete history of the symbiote bloodline together in a single being, creating a character of rare complexity.

These changes of host let writers explore every facet of Toxin: sometimes protector, sometimes threat, sometimes an instrument in the hands of forces greater than himself. In the major symbiote events of the 2010s and 2020s, Toxin regularly appears as a key piece, his power making him a coveted asset in the wars between symbiotes. His presence in the arcs tied to the legacy of Maximum Carnage and to modern symbiotic conflicts confirms his status as a central character in this mythology.

Toxin in pop culture and his big-screen potential

With the phenomenal success of the Venom films led by Tom Hardy and the expansion of Sony's symbiote universe, Toxin has become one of the characters fans most want to see adapted. His nature as the 'third symbiote', his superior power and his moral ambiguity make him an ideal candidate to extend the franchise on screen. Speculation about a possible on-screen appearance for Toxin has been running for years.

In video games and animated series, Toxin remains lower-profile than Venom and Carnage, but his standing among connoisseurs keeps climbing. He embodies what symbiote fans like most: the combination of a spectacular design - a red-and-black symbiote with patterns even more aggressive than those of Carnage - and a psychological depth that goes well beyond the simple monster. Toxin is not just one more creature: he is a living reflection on the nature of good and evil.

The symbiote saga on a poster

Alien Costume Saga comics poster

The whole symbiote bloodline starts with the alien costume. This collector's poster pays tribute to the saga that gave rise to Venom, Carnage and their descendants, right through to Toxin.

€22.90 View the poster

Why Toxin deserves his place among the great symbiotes

Toxin suffers an injustice: overshadowed by the crushing fame of Venom and Carnage, he remains little known to the wider public even though, on paper, he is the most powerful of the three. That obscurity is precisely what makes him so rewarding to rediscover. Toxin is not a simple variation on the violent-symbiote theme - he is its culmination and its transcendence, the symbiote who asks the question neither Venom nor Carnage ever really asked: what if a symbiote could choose the good?

His story - an infant hunted by his father, raised by an upstanding police officer, passed between heroic and criminal hosts - is a reflection on nature versus nurture, on moral transmission, on the possible redemption of beings built to destroy. In a symbiote mythology often reduced to an escalation of violence, Toxin brings a precious shade of grey.

For any fan of the symbiote saga, getting to know Toxin means completing the family tree that runs from Spider-Man's black costume through to the modern conflicts of the Marvel Universe. It also means discovering one of the most underrated and most promising characters in the whole of the web-slinger's world - a character whose best is probably still to come, on the page as much as on screen.

To explore the whole symbiote dynasty: discover the complete history of Venom, the grandfather of the bloodline, and dive into the story of Carnage, the father who tried to destroy Toxin at birth.