Cell

One of the major villains from the dragonball universe. He was created by Dr. Gero (later dubbed android 20), and was created to incorporate all the cells of the best fighters in the universe. By weaving all their cells together from each fighter, he is able to inherit their abilities and fighting techniques. Like Frieza, he has the ability to survive anywhere, like Piccolo, he can regenerate his anatomy if his core is not damaged (in his case, one cell is enough to regenerate from), Vegeta's fighting genius, and attitude, Goku's natural aptitude for fighting, and the young but powerful Gohan. Cell cannot reach his full potential until he absorbs Android 17 and Android 18. Once he does, they are permanently integrated into his design, giving him great power. Once he absorbs them, even if he loses android 17 or 18's body, he is still able to retain his perfect power (prior to exploding) after blowing himself up, leaving one cell he can regenerate from, and giving him a zenkai increase, making his power substantially greater, enough to kill Future Trunks with one blow, and power that rivals that of Super Saiyan 2 Gohan.