I have bit my tongue and have been watching this argument, but I can't take it any more! I can speak from experience in the corruption of Yu-Gi-Oh... *Ahem!
In my old house, I would play with these cards day and night. I was OBSSESD. Nothing started happening until about a year later. I look out my window to see a man in all black, his face was hidden but I shut the window and pushed the image out of my mind. Later, I was lying in bed and thought that I saw it yet again, but in the corner of my room. I screamed, and then woke up to nothing. I thought I had been awake, but I was having a nightmare. I narrowed it down to that. just a nightmare.
I moved shortly after this. I had my cards taken as a punishment (for a reason I can't remember...) and I then asked for more for my birthday. So, of coarse, I got the cards (it was the only thing I wanted). I had my cards and was so happy! I laid in bed that night to think about who I would battle, and it was the first night in a LOOOOOOONG time I had a nightmare. It brought up all of my childhood pains with my abusive biological mother, the sister I never got to say bye to, etc. I don't really want to talk about this, but I want others to know what is at stake. Anyways, I was doing the dishes the next day, and looking out of the kitchen window. I then see a man, dressed in all black, looking at me, peering behind a tree. My mom was talking to me then. "What are you looking at?" She asked, worried. "Nothing," I mumble. "I just thought I saw someone."
The next day, I noticed something. It clicked. I started to see the man again right after I got more cards! I hadn't seen him since the other cards were taken, and had forgotten about him. II go get my cards, and look at then very closely. I noticed that there was a symbol on one of my Spell Cards. Not to mention the NAME of the card! I then noticed that it was a curse circle if I remember correctly. It was the logo for The Worst Man On Earth. Go ahead! Look up all the nasty things that guy did! He sacrificed PEOPLE to the literal DEVIL on this symbol that was painted on his huge dark circular room! I think I've made my point. I burned my cards and haven't seen the man in black since.