Abilities

Misha the Heavy Weapons Guy, or The Heavy for short. The powerhouse of the teufort nine is capable of taking and dishing out quite a lot of punishment. He is not to be underestimated. Don't mess with him. He hates people.

Strength

Casually carries around and fires Sasha the minigun, his primary weapon. She weighs 150kg, or 330 pounds. Video source. He does not need to set the gun down to fire it like some baby man, but he is limited to shooting from the hip.

Hurts Ms. Pauling (accidentally?) just by nudging her.

BEAR SUPLEX

Takes on an adult Siberian Brown Bear, who are, in the TF2-verse, apparently at least 12 feet tall (probably? that bear didn't stay the same size from panel to panel at all) and capable of heavily damaging airplanes just by stepping on them. Note that Heavy does this sort of thing regularly. He taught his sisters to hunt bear with their, ahem, bare hands. In fact his family hates bear meat because theyeat it so darn often.

Uses Scout as a handle in a tug of war match with Mags and holds Scout at a stalemate with her. Mags is capable of keeping up with Saxton Hale and as such, can casually destroy any wildlife known to man.

Busts down a reinforced door protecting the intel.

Holds open Blast Doors for a small amount of time.

NON-CANON With Uber, STOPS A FUCKING TRAIN. Well, he derails it anyhow. Which is almost the same.

NON-CANON Words fail me.

Durability

Unfortunately Heavy is barely ever attacked in the comics, so there isn't a whole lot to go off of here.

Leaps down multiple stories, making a noticeable impact and 'TOOM' when he lands.

NON-CANON Here we go: Survives a train crashing directly into him. The uber runs out about a half second after the initial impact.

Owner of an extra-powerful Mega Baboon heart. However, he is apparently missing a rib.

In-game Capable of taking multiple direct hits from soldier's rocket launcher and surviving.

Fighting Ability

Escapes from a Soviet Gulag with his family three months after he arrived. It is implied he is the one that killed all the guards.

Fights this big bear apparently without suffering a scratch. Ignore that box saying the bear 'killed every last one of them'. That's a segue into another scene.

Kills like, a gajillion soldiers while he's ubercharged.

Intelligence

People think the Heavy is stupid because he speaks slowly and English is his second language. Actually, nothing could be further from the truth.

He has a Ph. D in Russian Literature.

He divines the true purpose of a mission Ms. Pauling sent them on before they even arrive

Tricks Saxton Hale when he asks who sent them. Granted, fooling Saxton Hale is not a difficult task.

The Sandvich

This strange food apparently somehow empowers the eater. In-game, it restores all of Heavy's health. In it's introduction video, it allows Heavy to fight off two other mercs, break soldier's spine, and somehow punch all of Scout's blood out of his body.