Seth

Seth(セス) is the main antagonist to Street Fighter IV. He is the head of Shadaloo's weapon division, S.I.N.

Appearance
Despite bearing purplish-blue skin and an extremely muscular physique, Seth is very much human. His appearance is bare except for his armor-like briefs, pushing no limit to his mobility. Around his abdomen and enclosed inside a pattern consisting of the Eight Trigrams of Taoist cosmology is an exposed area, which contains a rotating yin-yang sphere. This sphere appears to be the source of his power, where it copies and translates the data from Seth's opponents, and allows him to mimic the special techniques of other fighters, such as Ken's Shoryuken, Guile's Sonic Boom, and Dhalsim's unique ability to stretch his limbs.

His appearance is uncanny to that of the T-078 Tyrant from the Resident Evil - Code Veronica X. Another striking resemblance is to Dr. Manhattan of the graphic novel Watchmen; his laboratory location mimics Dr. Manhattan's laboratory & a '90s IBM commerical. Many fans also complained that he almost mimicked Urien from Street Fighter 3. Both of them have the same fight pose, tanned muscles, a bald head, and some under attire that covers the lower torso.

Personality
Seth isn't the least bit arrogant or overconfident like most villains. He is calm and concise. However he is known to laugh and gloat when pulling off his super moves.

Story
Seth is the 15th of his kind, there are 26 others like him, though he claims to be superior. His storyline indicates that he plans to control Shadaloo after Bison's apparent death at the hands of Akuma in Street Fighter II, and is dismayed at reports that Bison has once again returned from death. Bison himself makes plans to utilize Seth (for what end is left up in the air), and most of the characters' endings depict Seth's attempts at conquest as playing right into Bison's hands.

Fighting style
Seth employs special powers from each combatant in the game and appears to be one of the more powerful characters to appear in the Street Fighter franchise. His normal techniques are similar to Urien's from Street Fighter III. Various attacks he possesses such as the Shoryuken from Ryu and Ken as well as vacuum blasts with the flick of his wrists similar to Guile's Sonic Boom. He also possesses a metamorphic body of sorts such as being able to stretch his arms like Dhalsim as well as teleport like Bison. His unique ability seems to center around space as he is able to suck in opponents from afar and pound on them afterwards. When using this ability, his body turns black temporarily.

It's notable that Seth's attack and defense are increased when fighting him in Arcade Mode. When the player actually uses him, his abilities are more balanced.

Gameplay
His fighting style is a mix of all the fighters different techniques. For instance he has Zangief's grabs, El Fuerte's wall leaps, Guile's 'Sonic Boom', a unique Shoryuken and can teleport like M Bison.

Techniques

 * Sonic Boom. EX-able.
 * Shoryuken: up to 3 hits (must redo Shoryuken motion), EX-able
 * Spinning Piledriver Seth uppercuts the opponent into the air first. EX-able
 * Hyakaretsu: Seth does a single kick followed by a rapid flurry with his other leg if it connects.  EX-able.
 * Teleport
 * Tandem Engine: This attempts to draw the opponent closer; halves any energy in Seth's super bar. Ex-able.


 * Focus Attack: A long range tackle similar to Urien's Chariot Tackle in Street Fighter III.

Super Attacks

 * Tandem Storm: Seth produces a ball of energy that draws in his opponent and hits them repeatedly before blasting them away.


 * Tandem Stream (Ultra Combo): Seth attempts to draw the opponent into his stomach and then hurls them into the screen.

Videos
Seth vs Ryu in Street Fighter IV

Seth vs Ken in Street Fighter IV

Trivia

 * Seth's ability to use all of the fighters attacks as part of his movelist seems to be inspired by the Shen Long rumor who was said to have movesets from every character in the game.
 * The Eight Trigrams are: Qian 天, "Heaven;" Xun 風, "Wind;" Kan 水, "Water;" Gen 山, "Mountain;" Kun 地, "Earth," Zhen 雷 "Thunder," Li 火, "Fire;" and Dui 泽, "Lake."