In case it wasn't obvious enough, Pokémon TCG is something I am heavily into. I'm still learning some of the new rules and such, but it's pretty simple overall (obviously). I do collect them mostly, but as someone who loves to compete, I can take what I have and make use of them in a 'duel.'
Yu-Gi-Oh is a game I was into in the past, but after my whole collection was stolen by someone I thought I could trust, I stopped. I couldn't buy anything, since I was, like, ten. I had some scary cards for the day... like Relinquished and Thousand Eyes Idol. Oh, and I had Polymerization alongside the Thousand-Eyes Restrict card...
Yeah, I was THAT kind of player. I had other scary cards, but I stopped during the original introduction of Slifer the Sky Dragon, Obelisk the Tormentor and The Winged Dragon of Ra.