Retreat If your Active Pokemon has taken severe damage and you want to preserve it for later use, on your turn, you may Retreat it back to the Bench
Put simply, a Crystal Pokmon can change types mid-battle
(As opposed to the opposite, where you'd be okay making the game take more turns.) Do they have discard in their deck
You can also add a third card to this loop to fully break it something like Archangel of Thune or Conclave Mentor will let you supercharge every creature on your board to arbitrarily large stats and cruise to victory from there
Rarity Level of Your Cards Is it a common, uncommon, rare, or ultra rare
A gentle, sleeping, quietly terrifying monster