Celebi

It has the power to travel across time, but it is said to appear only in peaceful times.

Ability — Leap Through Time: When this Pokémon is Knocked Out, flip a coin. If heads, your opponent can't take a Prize card. Shuffle this Pokémon and all cards attached to it into your deck.

Sparkle Mine: Put 1 damage counter on each of your opponent's Pokémon.