Favorite Characters that are Situationally the Strongest(or Strong)

Like these characters are alright usually. But place them underwater, in freezing temperatures, in space. Or something along those lines, with a terrain or situational change. And they become unstoppably strong

Writing that out, I recognised this is sorta the deal with the Kryptonians. Normally they live sorta like regular humans do, but this because they live under an evil Sun.

Once the red Sun of Krypton is no longer at play. They get most of Supermans powers and potential for Strength.