You can make a beatdown deck, that focuses on bringing out big attack-stat monsters as quickly as possible, or you can make a control deck that focuses on shutting down your opponent as fast as possible
The rules of these battles are just the same as the real-life card game, but simplified
Specifically, Scarmiglione [17-133S], which has a special ability, Barbariccia [3-066R], which has an ability that triggers when it enters the field, Rubicante [3-024R], which is heavy on the cost but powerful, and Cagnazzo [13-091H], which allows you to place 1 Water Counter each time a Forward enters your field, are all recommended
Flame of Anor is an incredibly powerful Magic card, and Tamiyos existence makes it a heck of a lot better
Fans are hoping counters to Darkrai ex are introduced, as the Dark-type Pokemon fits into almost any deck and has become a strong archetype.