Maria de Guadalupe Santiago, better known as the superheroine "Silverclaw", was born into the Kamekeri tribe. She was baptized as an infant and raised in the Catholic Church. Her father also taught her about the pre-Christian religious beliefs of her people, which combined Incan religion with their own local gods.
Eventually Maria learned that Peliali, the volcano goddess of the Kamekeri people, is her true mother. This godly heritage is the source of Silverclaw's super powers.
From: "Atheist representation on the Avengers" forum discussion started 20 June 2001 on "Comic Boards" website (http://www.comicboards.com/avengers/view.php?trd=010620110715; viewed 24 May 2007):
Posted by Jae on Wednesday, June 20 2001 at 11:07:15 GMT
Atheist representation on the Avengers
The teams pretty well rounded now, but are there any atheistic members?...
Posted by D-Man on Wednesday, June 20 2001 at 20:10:53 GMT
...Probably the best comic you could find to figure out who believes in a god or a god, or have deep faith in God or a god would be:
The Goddess uses the heroes' faith and belief in gods and such to recruit heroes.
Here are a list of Avengers who are "believers" so are recruited by the Goddess:
...Other Avengers I'm guessing might be "believers":
Silver Claw [i.e., Silverclaw]
All other Avengers are up in the air.