"Is this all you're capable of? Try to entertain me more!"
I think I'd laugh directly in the face of someone who seriously says this... and over a card game no less... What is it? Actual real world Yugioh?
Sounds like your school didn't have a yugioh scene where you were in the top 3 players and some rich kid kept feeding new monster cards to the other kids to bring you down a notch only to come out on top all the time anyway with clutch wins.