Generally, for a walker to get there, they need to have two of the following three things: a way to protect themselves, a way to draw cards, or a way to kill stuff, and Sorin can do the first two of those, and he does it quite effectively
It's subtle, but it enables tons of unblockable wins
UR Ultra Rare Predaplant Ambulomelides X DARK Level 5 [ PlantFusionEffect ] ATK 1000 DEF 2500 2 "Predaplant" monsters If this card is Fusion Summoned: You can add 1 "Predaplant" monster or 1 "Predap" Spell/Trap from your Deck, GY, or face-up Extra Deck to your hand
Genn Greymane and Baku The Mooneater are cards that grant a bonus effect to your deck as long as you follow the deck-building rules they require, in this case, Genn only having even-numbered cards in the deck and Baku only having odd-numbered cards
As for Snorlaxs narcolepsy, Comfey, Pokemon Center Lady, Big Malasada, and Lum Berry are available
One of these events was the Kangaskhan Parent-Child tournament, a special event where a child and a player aged 16 or older competed in a tag-team battle against another team