History
The past history of Kingsley Rice of Earth-1121 remains unrevealed, but it is presumably similar to that of the Kingsley Rice of Earth-712. As much of their histories coincide with one another.
At some point in Kingsley Rice's history one of his world's governments decreed that super-powered beings were a threat to the status quo and to be destroyed. Inventing a bomb to destroy them all, all the members of the Squadron Supreme (and presumably every other super-being on Kingsley Rice's Earth) were destroyed by its explosion, with the exception of Hyperion.[1]
After Mar-Vell destroyed Death and created Paradise, Amphibian was one of the many super-beings that who would be brought to this new afterlife.[2]
Amphibian fate following the invasion of Paradise by the Kree remains unrevealed.