This Phyrexian Horror is a token-doubling trigger you'll always have access to thanks to it hanging out in the Command Zone
(Enchanted creature has "Whenever this creature attacks, if its toughness is 3 or less, put a +1/+1 counter on it." If you put another Role on the creature later, put this one into the graveyard.) You might also be interested in these products
Here's everything Wizards revealed in the sneak preview stream ahead of its official debut this May - including, of all things, Bill the Pony
So for the fighting archetype, this stadium is a must, as it has damage amplifiers such as Regirock-EX FCO 43 and Diancie FLI 74, besides special energies that increase damage such as Strong Energy FFI 104
(They're good creatures, Brent!) Secondly, shadow is more like a divided battlefield, where it's shadow versus shadow on one side with everyone else doing whatever it is they do on the other