What does "we barely scratched the surface of this card deck" mean? 

The physical surface where we placed the cards is scratched.

What does it mean when a card is "ko'd?" 

In trading card games what can be another word for "turn"?

True or false: When reading a trading card, the card always tells you how to play it and does not leave out crucial details. 

What is an example of a polarizing card game?

A game where strategy and fun are at odds.  

A game where everyone is enthusiastic about participating.

A game where skill is valued above all else. 