The Challenger's New Name is Grandmaster Prime

After having something personal stolen from him centuries ago, the Challenger makes a shocking declaration in Avengers #688.

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Marvel Comics Legacy & Avengers #688 Spoilers: No Surrender Part

En Dwi Gast (Earth-616), Marvel Database

Challenger (Elder of the Universe) (Earth-616)

14 Things You Didn't Know About The Grandmaster From The Comics

Marvel Comics Legacy & Avengers #689 Spoilers: No Surrender Part

Challenger (Elder of the Universe) (Earth-616)

Grandmaster Flash ReAction Figure – Super7

Challenger (Elder of the Universe) (Earth-616)

List of Marvel Comics characters: C - Wikipedia