<Li> Symbiote's autonomous defense capabilities </Li> <Li> Undetectable by Spider - Man's "Spider - sense" </Li> <P> Venom Symbiote is a fictional character appearing in American comic books published by Marvel Comics, commonly in association with Spider - Man . The character is a sentient alien Symbiote with an amorphous, liquid - like form, who requires a host, usually human, to bond with for its survival . After bonding, the Symbiote endows its enhanced powers upon the host . When the Venom Symbiote bonds with a human, that new dual - life form refers to itself as "Venom". The Symbiote was originally introduced as a living alien costume in The Amazing Spider - Man #252 (May 1984) with a full first appearance as Venom in The Amazing Spider - Man #300 (May 1988). </P> <P> The Venom Symbiote's first known host was Spider - Man, who eventually separated himself from the creature when he discovered its true nefarious nature . The Symbiote went on to merge with other hosts, most notably Eddie Brock, its second and most infamous host, with whom it first became Venom and one of Spider - Man's archenemies . According to S.H.I.E.L.D., it is considered one of the greatest threats to humanity, alongside Magneto, Doctor Doom, and Red Skull . </P>

Venom is the super villain of this comic book hero