I'm going to steal someones cards
Why do you want to steal someone's cards?
Because I want to see who will succeed after I've played with their cards
It is nice to win but you shouldn't steal. It is wrong and depending on the worth of the cards could get you in serious trouble with the law.
I'm just lucky that it's a worthless card or I'd be in big trouble
If they find out you stole or were cheating they might get really angry.  If they are playing for money that might be downright dangerous and end in violence.