Ah. It is a trading card game- typically, one would be able to watch the monsters depicted on their cards battling each other...

However, I am currently lacking the equipment for this. The most I have is the cards, so it is possible to play however. Essentially, each player has a number of 'lifepoints', which can be depleted by attack or effect of some kind on the cards. The goal of the game is to deplete the opponent's points before your own are extinguished.

[.. .... .....

wat.]