Blue (status effect)

From the Super Mario Wiki
PMCS Blue.png
“Mario's feeling blue... He only wants to use blue cards.”
Battle text, Paper Mario: Color Splash

Blue is a status effect in Paper Mario: Color Splash, inflicted only by blue paint in the battle with Roy. While Mario is in this state, he can only use cards with blue backgrounds. Like all other status effects exclusive to said battle, the effect is temporary and only lasts one turn.