You saw my poll? Well two people have voted so far, and they both guessed Phage. Guess again. Phage is one of the Symbiote spawn of Carnage. Actually, there are two Phages in the Spider Man and Marvel universe! :) (Actually the name is unofficial, while the second one is, but they're both Phage.) Technically though, the second Phage is a Xenophage. :P Sorry if your confused.
Phage also came in "Venom- Along Came a Spider" as an action figure. Carnage, from the same line, had such a gruesome look, they couldn't sell it in most children's stores.