METTLE

Real Name: 
Kenneth Mack
Universe/Timeline: 
Marvel Universe
Status: 
Deceased
Category: 
Other
Nationality: 
American
First Appearance: 
Avengers Academy #1
Last Appearance: 
Avengers Arena #1
Cause of Death: 
Murdered by Arcade in Murderworld
Powers & Abilities: 
organic iridium metal body possesses increased mass and superhuman strength and durability
Affiliation: 
Avengers Academy
Avengers Membership: 
Avenger Third Grade. A unique status crafted for the first (and ultimately, only) graduating class in Avengers Academy #39.
Notes: 

The source of Mettle's powers was never revealed.

Early solicitations referred to him as "Fortress", presumably a preliminary name.

Last Updated: 
17th January 2023 by Monolith