Vecna seems like a monster that's difficult but, with higher level characters, not remotely impossible to defeat. High level spells and heaps of necrotic damage would be a cornerstone of this battle. At some point in his past Vecna's personal guard, Kas, betrayed him, cutting off his hand and taking his eye.
The trio gets upstairs and find Vecna strung up on his vines, unconscious while he deals with Eleven in the mind palace. They torch him with Molotov cocktails, and when he wakes up, Nancy shoots him with a sawed-off shotgun.
Personality. The Sword of Kas is singularly focused on destroying Vecna and his followers.
The second important note here is that he's still not easy to defeat. Some of his most notable features are that he has 32d8 + 128 hitpoints, five legendary resistances per day and can cast a counterspell as a reaction once per turn. It's probably also worth mentioning that when you defeat Vecna, he never really dies.
The Eye and Hand of Vecna can only be destroyed by the Sword of Kas, the sentient chaotic evil sword of Vecna's former vampire general, Kas.
His main weakness is not any particular set of traits, but a constraint imposed by his location: the Chaotic Quest entrance is a portal rather than a staircase, and Vecna is covetous. Vecna will therefore readily warp to you, but will not teleport away to heal.
These visions build over time, and within a space of 24 hours Vecna's victims enter one final trance. There, Vecna taunts them, rejoicing in their heartache and sorrow, before killing them. Vecna's victims die in an agonizing way, lifted high into the air.
Ultimately, it is revealed in Stranger Things season 4's finale that the reason why Vecna was killing Hawkins teenagers was to create a massive gate that merges the Right Side Up with the Upside Down - and he specifically needed four bodies to do so.
Based on the flashback in “The Hellfire Club”, he killed an estimated 21 people: 13 lab subjects, two orderlies, two guards, Ten, Alec, Dr. Ellis, and Six. A flashback during “The Massacre at Hawkins Lab” later reveals that Vecna killed even more people in Hawkins Lab than we thought.
Vecna lives in the Upside Down and preys on people's past traumas and guilt. The monster curses its victims, making them relive their trauma in progressively more gruesome ways until it violently kills them. (And we mean, like, really violently.)
After a certain period of time, Vecna will finally kill the victim by placing them into a comatose-like state, in which they will be unable to respond to outside stimuli.
Mike, on the other side tries to give strength to Eleven, who is at risk as she is captured by Vecna. Eleven gathers her strength and overpowers Vecna, who's just about to kill Max.
His first three victims — Chrissy Cunningham, Patrick McKinney, and Fred Benson — are all peers of The Party, people they know from school, which makes Vecna's terror all the more real.
At his empire's height, Vecna was betrayed and destroyed by his most trusted lieutenant, a vampire called Kas the Bloody-Handed, using a magical sword that Vecna himself had crafted for him, now known as the Sword of Kas.
Eleven has a memory during this episode and realizes that 001/Henry Creel (Jamie Campbell Bower) wants her to join him on his evil journey, and she banished him to the Upside Down. 001 then transformed into Vecna, the horrifying Stranger Things villain.
The whole curse about a week, and 24 hours after the visions start, Chrissy enters a drawn-out trance and Vecna gruesomely kills her: she levitates, all her bones break, and her eyes are gouged out.
Vecna draws power from sad and angry memories and that is the main reason he targets traumatized teens. Those teens are a well of power just there to be absorbed. This is not just a theory, Vecna himself told Eleven about the power that angry and sad memories hold. Also in episode 8 of Season 4 named “Papa,” Dr.
As the ending of Stranger Things season 4, part 2 made very clear, Vecna, a.k.a. Number One, is far from finished with Hawkins. Yes, he may have been beaten and battered by Eleven, Nancy, Robin and Steve, but he did survive.
Vecna's obsession with time appears to be linked to his hatred of humanity. He views time as a human imposition on the natural world; an attempt to impose order on nature.
Brenner. The episode culminates in Eleven unknowingly freeing One from Brenner's control, allowing him to unleash his true power on the staff and children in the lab, killing everyone except for Eleven and Dr. Brenner, who is only knocked unconscious.
Henry spends years trapped in the Upside Down, which changes him into the monster that is now terrorizing Hawkins in the present: Vecna. As Vecna, Henry uses his powers to torment his victims in the real world with haunting visions from their pasts before ultimately possessing them and mangling their bodies.
Patrick was targeted due to his father's abuse of him. Finally, Vecna targets Max for her trauma from witnessing Billy's death and uses Barb's (Shannon Purser) death as a way to use Nancy.
Brown is likely right in saying that no one created the Upside Down and that the parallel dimension has always existed. And if the boys' science teacher was right in saying there are “infinite variations” of our world in alternate dimensions, there could even be several versions of the Upside Down out there.
After learning how Victor Creel was able to evade death back in 1959, Robin and Nancy deduce that playing the victim's favorite song can help them escape the trance that Vecna places them in, with music and happy memories being the only way to keep Vecna's fatal curse at bay.
Vecna's curse causes people to bleed before they are killed, which is probably linked to the Upside Down being partially toxic to humans or at least warping their bodies due to exposure.