chibi card sleeves Yu-Gi-Oh Official Small Sleeves [50 ct] (Konami) : Toys & Games legal card sleeves specifically designed for the Yu Kawaii Vivi Card Sleeve Design

You probably picked up a starter deck based on your favorite character from the anime and made up the rules as you went

And of course, only big collector's will want the Black Belt promos (as it's player bulk, and I can't imagine the average collector will care), and a larger market will want the Professor's but I speculate no more than a few dollars a piece on those at release, if that

Collecting multiple Ashs Pikachu variations (SM109, SM110, SM111, SM112, SM113, and SM114) can increase the overall value of your collection and potentially lead to a higher return when you sell

With the extensive knowledge you have on cube do you think a cube without planeswalkers might offer a more dinamic, less skewed experience