Venom is a symbiotic .. symbiotic is the one of the powerfull symbio who combine with othes. They complete other with combine and make them more powerfull. But it is important thet host is mental able n powerfull. In movie we see that adie is the simbiotic and beacome venom..
https://www.imdb.com/title/tt1270797/mediaviewer/rm873889536