Marvel's Werewolves

https://marvel.fandom.com/wiki/Werewolves

The werewolf or "lycanthrope" is an individual, usually human, that can shapeshift into a wolf or therianthropic hybrid wolf-like creature, either purposely or after being placed under a curse or affliction (often a bite or scratch from another werewolf) with the transformations occurring on the night of a full Moon.

Origins

Like many supernatural races that exist on Earth, the true origins of werewolves vary in many accounts. Furthermore, there are many other species that have similar characteristics.

• While traditionally, werewolves appear to have a mystical background, their origins are tied to the Wolf Demon, the Wolf Gods, and the Wolf-Men, a race of lupine humanoids that existed circa 18,000 BC.
• One account suggests that lycanthropy was a gift handed down by the Elder Gods. There are passages in the Darkhold that contain information regarding a werewolf curse, which suggests that there may be some connection between werewolves and Chthon.
• The Caretakers of Arcturus were also involved in the creation of the werewolf curse.
• Khonshu was said to have started the curse to create super-powered slaves controlled by his Moon and vulnerable to the silver that his followers used.

Though they were created only circa 8,000 BC, following the post-Hyborian cataclysm, or after the Great Cataclysm, there were mentions of them and even known werewolves in the Pre-Cataclysmic and the Hyborian Age such as Demontur. Given Werewolves are distant relatives of the Wolf-Men, it can be assumed mention of "werewolves" predating the Great Cataclysm are related to the Wolf-Men.

Powers

• Typically, werewolves have enhanced strength and can transform between human form and wolf form and into various stages of mid-way transformation. In their lupine forms they have enhanced senses, speed, and agility. Most mystically-created werewolf transformations are controlled by the phases of the Moon. The phases of the Moon also effect how much of their human mind remains intact during their transformations. Typically, mystically-created werewolves are immune to most conventional forms of physical harm and have enhanced healing abilities.
• Artificially-made werewolves have various levels of strength and limitations that depend on the varying factors.

Weaknesses

• Mystically-created werewolves usually have a weakness to silver. This element can cause them permanent harm or even kill them

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Artificial Werewolves

Some "werewolves" are in fact product of recent science:

• According to the Angel, a mixture of the rare herbs Sitsuie and Hirsasu could transform an individual into a werewolf if they were injected by this. He would clash with two such werewolves, the Pakistani Singa and his hapless victim Robert Harrison. The Angel would slay Singa and cure Harrison. How to cure such a transformation remains unknown. These werewolves had enhanced strength and were consumed by a savage fury. They appeared to remain in lupine form indefinably, and were vulnerable to no mortal means of death.
• Nightshade created a Werewolf Serum, which was useful to Dredmund, the Demon Druid. She helped him create a small army of werewolves, and even temporarily transformed Captain America into a werewolf.

Mistaken for Werewolves

Due to their wolf-like characteristics, many individuals have confused them for Werewolves, but they are not;

• The X-Gene causes many many mutants to take on lupine characteristics. This includes: Romulus, Remus, Blondie, Pup, Wolverine, Sabretooth, Wolfsbane, Wolf Cub, Vivisector, Native, Wild Child, Aardwolf, Maximus Lobo, Thornn, Feral, and possibly Hunter in Darkness.
• Tier was the offspring of a mutant and a Wolf God.
• John Jameson was the Man-Wolf, the result of an extraterrestrial virus that transforms people who come in contact with the Godstone, and a race of Weirdworld.
• Many scientist have uplifted wolves to give them humanoid characteristics, such as:
• The Man-Beast, one of the New Men created by the High Evolutionary.
• Fera, created by Master Khan.
• In the 1950s, Joel Dennis found himself becoming a werewolf. He went to Dr. Herme Slovak who injected him with a serum that transformed the man into his true form of an actual wolf.