>>121125559He’s a Diamond.
The Diamonds don’t seem to have upper power limits.
Based on Peridot trying to do things she theoretically couldn’t so hard that she evolved a power Peridots shouldn’t have, Gems in general don’t.
Instead if just trying and feeling new things until he got new powers like Pink, Blue, Yellow, and White, he had a massive boost in strength from emotional distress, anxiety, and prolonged fight or flight response.
He couldn’t seem to maintain that power or activate it at will though. It seemed to be triggered by shame, guilt, and/or embarrassment and he had to be Fused with Amethyst to keep it going long. By himself it only lasted until he was out of the living room. Based on how long it took him to make it home with Jasper’s shards it didn’t even get him out of the forest.