Because the item was only printed for participants at the tournament, only 36 of these in total were ever created, making it one of the rarest Pokemon cards in history
Enchantress Decks Decks built around enchantments, often referred to as "Enchantress" decks, aptly named after cards like Verduran Enchantress, Enchantress's Presence, and Mesa Enchantress, benefit greatly from Bestow creatures as they synergize with most Enchantress staples that either draw cards or trigger effects when enchantments and/or creatures enter the battlefield
While you can find plenty of good options if you run Delney in the command zone, there are even more to choose from if you add other colors
Card #064 is Kadabra, and its return is one of the reasons 151 carries genuine historical weight beyond standard nostalgia
thus limited
The best deck for this commander will take advantage of these low-cost interactions and scale Vivi's power really well, all while it deals a lot of damage to the opponents