A gifted student of the martial arts, Davos was one of the two candidates for the right to challenge for the power of the Iron Fist but was defeated by Wendell Rand, adopted son of K'un-L'un's ruler Lord Tuan.
Twenty years later, Wendell's son Daniel Rand succeeded in winning the Iron Fist power and soon afterwards also returned to Earth.
[volume & issue needed] Davos was restored by the Crane Mother, promising to locate and destroy the renegade Iron Fist Orson Randall in return.
Davos allied with HYDRA against Iron Fist in a plot to obtain Rand-Meachum's Randrapid train to build a tunnel through the K'un-Lun mountains.
Davos located Randall in an opium den in Bangkok, Thailand and reported this to the Crane Mother, who sent a pair of her daughters to investigate.
[volume & issue needed] Crane Mother sent over a dozen daughters to Steel Serpent, along with the warning that if he failed, they would consume his immortal soul.
Enraged, Davos concentrated his chi into a new hand and proceeded to viciously beat his opponent to near-death, even refusing to let her yield.
[volume & issue needed] Later, Davos took part in the rebellion of K'un-L'un, after his father forced him to recognise the potential treachery of his allies by asking him to consider the possibility that there might another angle that he had not anticipated rather than constantly assuming that he was always right.
His father, Lei Kung the Thunderer, who has taken over leadership of K'un-L'un, charged him with guarding a dragon egg, from which Shou-Lao shall be reborn for the next Iron Fist to fight.
[volume & issue needed] The Steel Serpent is a master of the martial arts of K'un-Lun, including those practiced millennia ago.