Jirachi

If an attack does damage to Jirachi during your opponent's next turn, Jirachi is not affected by that attack's effects (such as damage, status effects, or effects of Poké-Powers or Poké-Bodies). After the damage is done, prevent damage from the next attack of your opponent in the next turn.

Flip a coin until you get tails. For each heads, search your deck for a card, show it to your opponent, and put it into your hand. Shuffle your deck afterward.