I wrote a six page essay on this very topic for school >.>
Any way, I'm not going to argue with anyone. I'm a christen, and I think it just comes down to this: either play the GAME, or don't.
Bolded Game because that is exactly what it is.
Now, I'm not aloud to play Yu-gi-oh, because I believe that it is a little demonic. You don't hear Pokemon Players say "I summon Pikachu", or "I return Piplup from the graveyard". That does sound like it's leaning in a different directions from Pokemon.