Vapor (Yost Universe)

Vapor was a super being of pure gas and a member of the U-Foes.She was in the Cube in a special cell before the Breakout happened.

Appearance
Vapor's first appearance was a cloud form of a woman. She appeared in the Avengers Earth's Mightiest Heroes as a prisoner of the Cube,a supervillain prison. She was with the U-Foes fighting the Avengers inside the Cube.

Biography
Her history as a normal person is unknown. It is said that she was with the three others going to space to be exposed to cosmic rays in order to gain new powers just like the Fantastic Four did. It did work but they were exposed to it more than the Fantastic Four has. She gained the power of gas while the others gained telepathy(Vector),electrical powers(X-Ray)and superstrength of iron (Ironclad).She took the name Vapor because of her cloud form is vapor.

She and the U-Foes were in the Cube in special containent cells to keep their powers in check after being captured by S.H.I.E.L.D.

When the Breakout happened,she and the U-Foes escaped.As the Leader ask to stay and assist him,they agreed to protect him at all costs.

She and the U-Foes engaged the Avengers and S.H.I.E.L.D. agents inside the Gamma-Domed Cube. She was easily defeated by Thor's hammer because of her vapor state.

Her fate was unknown if she was taken to the Negative Zone or escaped with the other U-Foes.

Powers/Abilities
She has the power of air. She can go through walls and other things because of her cloud forn.She was considered the easiest foe to defeat as Thor demonstrated Vapor's weakness of handling the incoming air out of Captain America.