My card should be like "You die and the opponent wins. Good job.". Can't see many people using it though <_<.
There was a card like that in Magic the Gathers, from the series "Unglued" which is all illegal in offcial game tournys.
Cheese Stands Alone
Cost: 1 Colorless
If Cheese stands alone comes into play, and is the only card on the table, you win.
No fret, I was talking about making it a BYOND game, but it is a good card. However, the card compares to the wall type I will reveal to the one that plans to design this byond game, if one plans to. gl.