Radiant Jirachi

It is said to have the ability to grant any wish for just one week every thousand years.

Ability — Entrusted Wishes: If this Pokémon is in the Active Spot and is Knocked Out by damage from an attack from your opponent's Pokémon, search your deck for up to 3 cards and put them into your hand. Then, shuffle your deck.

Astral Misfortune: Flip 2 coins. If both of them are heads, your opponent's Active Pokémon is Knocked Out.