Identity: John Proudstar
True Invulnerability: Good
Tracking, Hunting, Survival
Apache Nation, Xmen
John Proudstar was an apache, ashamed of what he considered the cowardice of his people and their condition in the world. When the Original X-Men were kidnapped by Krakoa, Charles Xavier recruited him, along with Banshee, Colossus, Nightcrawler, Sunfire, Storm and Wolverine to save the old team, forming the New X-Men. This new team saved the Original X-Men, but the old team felt that they were no longer needed, so they left the X-Men. Only Cyclops remained, so he could train the newcomers.
Thunder Bird felt a need to prove that he was the best member of that team, and that caused him some trouble: he didn´t accepted Cyclop´s orders to rest and Wolverine and him couldn´t stop fighting at each order.
In the second mission of the new team, the X-Men fought against Count Nefaria and his Animal Men, to avoid a nuclear holocaust. The team defeated Nefaria and saved the world from destruction, but the Count tried to escape. Thunderbird managed to jump on the plane the villain was, trying to destroy it. Even with Banshee trying to convince John to save his life, Proudstar kept punching the plane until it exploded, killing him. The X-Men never truly forgot that lost, but, in some way, Proudstar is still among them: in spirit and in the form of his younger brother at X-Force, Warpath. In a recent tale, we discovered that he was a hero before he was a X-Men, when he stopped an evil experiment in his old home.