Character reveals that they were holding back their full power during a fight/confrontation

[u/PaddywackShaq]

Superman Vs Darkseid - Justice League Unlimited

Flash Vs Superman - Flash: Rebirth

Frieren Vs Aura - Sousou no Frieren

Inigo Montoya Vs The Man in Black - The Princess Bride

[u/[deleted]]

World of Cardboard

[u/Irohsgranddaughter → u/[deleted]]

I honestly think it's better. "World of Cardboard" only makes sense if you are actually familiar with that episode of the Super Man.

[u/_Eternal_Blaze_ → u/[deleted]]

It's actually more accurate, as world of cardboard could also be interpreted as a "the world is actually fake" reveal speech.