Sack (comics)

Sack is a fictional mutant supervillain created by Marvel Comics for their team called Gene Nation. His first appearance was in Uncanny X-Men #323.

Fictional character biography
When the mentally unstable Mikhail Rasputin flooded the Morlock tunnels, many were believed dead. However, at the last instant Mikhail used his powers to open a portal into a parallel dimension dubbed The Hill. In this dimension, time moves at a faster rate, and even though it was a manner of months in the main Marvel Universe, it had been between 10–20 years on the Hill.

On the anniversary of the Mutant Massacre, a horrific event in which Mr. Sinister's henchmen the Marauders killed many Morlocks, the members of Gene Nation reappeared in the main universe (Earth-616). Their mission was to destroy one hundred humans for every Morlock life that was lost. Sack along with Vessel were the first members to show themselves, killing a few civilians. Sack had suffocated a coroner, and an innocent bystander, when the X-Men arrived. They battled with Wolverine, Storm, Cannonball, and later Beast and were hardly fazed by their show of force. Finding their luck changing, the two Gene Nationals fled.

Afterwards, a team of X-Men and the Morlock Callisto confront an attack group from Gene Nation including Sack, threatening the lives of several civilians by attaching incendiary devices to them that were regulated by Marrow's heartbeat. Seeing it as the only way of stopping the terrorist, Storm rips out Marrow's heart. Defeated, Callisto takes Sack, along with the remaining members of Gene Nation, back to The Hill.

A few months later, Storm is kidnapped by Mikhail and taken to The Hill. Once there she has to fight her way to the top of the hill where Mikhail lives, where she successfully overpowers him. Sack is one of the team that had successfully reached the top, yet he had decided to take on the moniker of "Glass". Having won the victory, Storm forces Mikhail to take all of the people living on The Hill back to the real world. In an effort to give the mutants a new start, she settles them in a village outside of her home town in Africa.

Fortunately for him, Sack did not have any involvement in the next two installments of Gene Nation, because a vengeful Agent Zero killed all current members to make Marrow suffer. Sack was one of the few mutants that was unaffected by the Scarlet Witch's tamperings of M-Day, and was next seen on the grounds of the Xavier Institute as one of the 198. He was seen associating with former Gene National Fever Pitch and former Morlock Erg, and almost incited a riot against their Sentinel "protectors". If not for the intervention of Mister M, it could have escalated into a bloody battle. When O*N*E* offers to let the mutants into Salem Center in exchange for being implanted with "tracking" chips, Sack is one of the mutants that has it implanted. When the device's true purpose is revealed he attempts to remove the device, discovering that he can't and it has bonded to his skull. Fortunately Mr. M, who did not have one implanted, removes Sack's along with everyone else's.

Sack tries to claim territory on the X-Men's new island base. He takes hostages to back up his claims and is defeated by Psylocke.

During "Second Coming" Sack was arguing with Toad about joining the X-Men in order to survive, when a Nimrod fired upon them and blasted his head off as well as Toad's finger.

Powers and abilities
Sack is a being composed entirely of a gelatinous body that covers his skeleton. He is able to shift his liquid form to cover and control his host while virtually undetected. However, his form is not porous, causing his hosts to drown inside him. Because his body is not made of solid matter, he is resistant to injury.