Our earliest exploration into this space, in exploratory design, involved a deck called the Mansion
Once per turn, if an opponent's monster with the same Attribute as a monster in your GY is destroyed by battle or card effect, if this card was Fusion Summoned using 2 different Attributes as material: You can draw 1 card
Prepare yourself by spending the day catching and training Pokmon, then venture into the battle zone to take on other Trainers
[2] Going into Battle (Battle Phase) During your Main Phase, you can conduct a battle against your opponent for 1 time only
This makes it an incredible option for dealing with decks that use Teal Mask Ogerpon, and it is a reliable answer to some of the format's most powerful strategies
Earthcraft is the best source of mana to fuel a number of infinite combos involving Doubling Season, Cathars Crusade, The Meathook Massacre, and Corpse Knight, among others, but these cards only scratch the surface of your combo potential with this commander, so if thats your preferred style of play, the linked primer above is going to be your best starting point for deck construction