Each of the cards is encapsulated with the new CGC Cards Signature Series label, which is only given to collectibles that were signed in the presence of a CGC witness
Energy cards are used to power up Pokmon and fuel their attacks, while Pokmon Trainer cards provide extra advantages against your opponent
At the beginning of combat on your first turn, Ezuri's ability triggers, and you can put at least five +1/+1 counters on a creature
Foil copies, meanwhile, are going for as much as $90
In fact, if you don't like the idea of depending so much on randomness, we can arrange it so that Cowardice goes away every time Grip of Chaos is about to come up, to guarantee that whatever Grip chooses is irrelevant--all it will accomplish this way is getting more Psychic Battle triggers, and then we can reintroduce Cowardice to the board again before those triggers resolve