Ephialtes

Ephialtes is one of the gigantes from The Heroes of Olympus.

Powers
Superhuman reflexes: Despite his great size, Ephialtes possesses incredibly quick reflexes. He used his quick reflexes to deflect a lightning bolt with his spear.

Limited invulnerability: As a gigante, Ephialtes can only be killed by a god and a demigod working together. He will regenerate at an accelerated rate if he is injured by anyone else.

Abilities
Combat skills: Ephialtes is a very skilled warrior.