Level: Omega

Thanos

The Mad Titan who wielded the Infinity Gauntlet. Erased half of all life with a single snap. Greatest threat Earth has ever faced.

Level: Alpha

Ultron

Rogue AI created by Tony Stark that evolved beyond its programming. Sought to eradicate humanity to bring peace.

Level: High

Loki

God of Mischief and Asgardian prince. Led the Chitauri invasion of New York. Master of illusion and manipulation.