telepathic abilities augmented by his psycho-helmet allow him to read minds, project his thoughts, generate images, and scan physical objects, Think Tank fusillage equipped with stun blasters and machine guns
Mentallo became Think Tank in Captain America (1st series) #346, and assumed control of Headlok in Thunderbolts (1st series) #56. He was apparently killed by an Adaptoid in Super-Villain Team-Up: M.O.D.O.K.'s 11 #2. He got better.