Null the Living Darkness

Null is an entity that thrives on fear and uses his victim's phobias to manifest a physical form before attacking the nearest planet.

Fear Itself
While on the path back to Earth, the Agents of S.M.A.S.H. find Silver Surfer fighting the Null until he is knocked out. The Null uses its powers to bring the fears of the Agents of S.M.A.S.H. to life: using Hulk's fear of losing control in the form of Dark Hulk, A-Bomb's fear of clowns in the form of Obnoxio the Clown, She-Hulk's fear of the cold by slowly encasing her in ice, Red Hulk's fear of losing his strength by rendering him weak and extremely scrawny and Skaar's fear of robots by manifesting robots. The Null also brought Leader's fear of losing his intelligence to life by shrinking his large head until he is reduced to a babbling idiot. When Silver Surfer regains consciousness, he helps the Agents of S.M.A.S.H. fight the Null after gaining physical form with plans to invade Earth through a wormhole and feed on the fear of its inhabitants. After the Agents of S.M.A.S.H. defeat the Null, forcing the entity to become non-corporal and powerless, Silver Surfer closes the wormhole from the other side as he vows to the Agents of S.M.A.S.H. that he will tell Earth about their heroic actions in their fight against the Null.