Ditto

Ditto is an alien with the ability to duplicate himself to an unlimited amount. Even when he clones himself to any amount, his power is still not divided into fractions, which is a good thing because then each Ditto would still have the same amount of power as the oringinal Ditto. But he has a downslide which is that when one Ditto gets injured, all of the other Dittos will also feel the pain. So, if one Ditto dies off, all of the other Dittos will also die off.