slab pokemon card PSA 3 Graded Display Case with LED Lights or even a chase hit Pokemon Mystery Slab - Poke

The card will have instructions on how to use it

Besides that, the only real interaction a player had was to sideboard in other colors, a factor that they have no control over before they sit down at the table

Dialga 6 Yanma Grass 50 Flap (20) Dialga 7 Yanmega ex Grass 140 Air Slash (120) Discard a random energy from this Pokmon

You have to protect your lifegain as hard as you can, and be especially aware of explosive turns they can have

This three-mana creature comes down quickly and gives you access to white and black while building your deck, and since it has partner, you can add another color or two to round out your list