another creation of the first two Cat People), Greer once again donned the Cat costume and drove them off. However, she was mortally injured by a blast from one of their alpha radiation pistols. Greer regained consciousness in a Baja California cave, surrounded by a gathering of Cat People summoned by Tumolo. Rapidly dying from the radiation's effects, Greer was offered one last hope of survival: a combination of ancient science, sorcery, and mental power that would transform her into Tigra, the Cat People's legendary half-human, half-cat warrior. She readily consented, began wearing only her black bikini from this time on, and arose from the ceremony as a superhumanly-powered human-animal hybrid. Striped fur covered her entire body, her hands and feet bore razor-sharp claws, her teeth became long and pointed, and her eyes were now cat's eyes. In addition to superhuman strength and senses, she also gained many of the drives and instincts of a cat. Soon after, she encountered the Werewolf. Though initially unable to change back to her human self, Tigra received from the Cat People a mystical cat-headed amulet that allowed her to first create the illusion of her human form and later to change at will. She seldom made use of it, preferring her feline superpowered form and mostly abandoning her life as Greer Grant Nelson. Greer resumed her superhero career, with most of the world unaware that the woman who briefly fought crime as the Cat was now the feline Tigra. She fought alongside most of Marvel's heavy-hitters in wide-ranging adventures. She first battled Kraven the Hunter, and then teamed with Spider-Man against Kraven. She also became a friend and associate of the Fantastic Four. When the Avengers found themselves shorthanded, Moondragon used her mental powers to compel a dozen unaffiliated heroes (apparently selected at random) to travel to Avengers Mansion and audition for the vacant position. Though he disapproved of Moondragon's methods, Captain America offered Tigra a spot on the team. Although Tigra's first tenure with the Avengers was brief, she served well. She also aided the X-Men against Deathbird. Her time with the Avengers was highlighted by her saving the world from destruction by the Molecule Man single-handed, who intended to consume the planet's energy, like Galactus. Alone among the Avengers, she was able to get close enough to him to talk him out of his plan. She convinced him to seek help