10 X-Men Villains With The Biggest Body Counts

Selene Gallio is one of the oldest mutants on Earth. Since her abilities include telekinesis, superstrength, disintegration, life absorption, telepathy, and pyrokinesis, it's self-evident the Black Priestess is also one of the most powerful.

However, Selene rapidly ages when she uses her powers, forcing her to feed on others to stay alive. Since she's been around for 17,000 years, one can only imagine how many lives the Hyborian witch has taken to survive.

Selene believes she will ascend to godhood if she spills enough blood, which has encouraged her to initiate dozens of wars and catastrophes. In Doctor Doom and the Masters of Evil #4, Selene admitted she triggered Mt Vesuvius’ eruption, which killed the 2,000 people who resided in Pompeii.

However, since she needs to harness the power of millions of souls to become a deity, she often allies with powerful establishments like The Hellfire Club so she can use their sway to commit atrocities. Since she has fed off members of The Hellfire Club and other immortals like herself, it's clear Selene will consume as many people as she needs to in order to achieve her goal.