Polestar is the name used by a pair of mercenaries and antagonists of Spider-Man

Spider-Man

Spider-Man is a fictional Marvel Comics superhero. The character was created by writer-editor Stan Lee and writer-artist Steve Ditko. He first appeared in Amazing Fantasy #15...

, closely associated with the Great Game. The first is currently deceased.

Polestar I

Polestar's costume and gauntlets gave him significant control over various magnetic properties. Personality wise, he seemed obsessed with corporate business strategims and lingo, seeming for all intents and purposes to be a glorified corporate yuppie answering to his financial backers in the Great Game.

Thomas Duffy, the original Polestar, battled Kaine

Kaine

Kaine is a fictional character, a Marvel Comics supervillain and antihero who serves as both an ally and an enemy of Spider-Man. He first appeared in Web of Spider-Man #119, and is the Jackal's first failed attempt at cloning Peter Parker...

 in his first appearance. Polestar is notable for having aided fellow Spider-Man enemy and Great Game player El Toro Negro

El Toro Negro

El Toro Negro is a fictional character, a South American mercenary and antagonist of Spider-Man closely associated with the Great Game...

 in killing the Marvel Comics hero Nightwatch

Nightwatch (comics)

Nightwatch is a fictional super hero who has appeared in various comic book series published by Marvel Comics. He exists in Marvel's main shared universe, known as the Marvel Universe.-Publication history:...

. During an attempt to kidnap the son of Nightwatch's ex-girlfriend (the boy having been declared a prize in the Great Game), Duffy used his suit's powers to peel back Nightwatch's costume (composed of nanites

Nanorobotics

Nanorobotics is the emerging technology field of creating machines or robots whose components are at or close to the scale of a nanometer . More specifically, nanorobotics refers to the nanotechnology engineering discipline of designing and building nanorobots, with devices ranging in size from...

) long enough for El Toro Negro to shoot the hero directly in his exposed chest.

Unfortunately for Polestar, El Toro Negro then immediately turned on him, placing a gun between his eyes and shooting him point black in the head.

Polestar II

As is often common with costumed supervillains, it was not long before someone else was found to fill the identity. A man named Patrick Trettel soon found sponsorship in the Great Game as the second Polestar, and was seen alongside Joystick

Joystick (comics)

Joystick is a fictional character in the Marvel Comics universe.-Fictional character biography:Virtually nothing is known of the past of Janice before she first appeared as Joystick, including the origin and nature of her apparent superhuman powers...

 battling the new Thunderbolts

Thunderbolts (comics)

The Thunderbolts are a Marvel Comics superhero team, which consists mostly of former supervillains. The group first appeared in The Incredible Hulk #449 , and was created by Kurt Busiek and Mark Bagley.-Publication history:...

in New Thunderbolts #2.