Lexosuit Capabilities: While combating his opponents, Luthor wears a durable exosuit to protect himself and to greatly enhance his physiology such that he could endure a battle with Kryptonians.
Advanced Durability: The metallic shell of the Lexosuit protects its user from being harmed. The material is also proven to be able to endure the extreme heat of heat vision and the vacuum of space.
Flight: The thrusters of the Lexosuit allows Luthor to levitate in the air and fly at an exceptional speed.
Green Kryptonite Blasts: The gauntlets of the Lexosuit are able to create and shoot powerful blasts of energy with Green Kryptonite, capable of harming Kryptonians with a single blast.
Heads Up Display (HUD): Like many advanced exosuits, the Lexosuit has a screen installed in the helmet to alert its user of any danger and provide crucial information to optimize the application of itself.
Self-Contained Life-Support System: The Lexosuit was proven to be able to keep its user alive while in extreme environment such as the vacuum of space.
Superhuman Speed: The suit is able to keep up with the superhuman speed of Kryptonians, most notably in flying.
Superhuman Strength: While wearing the gauntlet itself does not give its user the same amount of enhancement, the force exerted by them are capable of sending individuals flying backwards with ease.
Genius-level Intellect: Luthor was shown to be an intelligent individual, often outsmarting his Kryptonian foes, Superman and Supergirl, and causing mass destruction without any consequences. He was also able to understand unfamiliar alien technological concepts and use them against his opponents.
Engineering: Luthor was able to understand complex engineering concepts and create powerful weapons.