pokemon sealed base set booster box Japanese Pokémon Pokémon TCG: Unlimited Base Set

Like Slifer , this ones purely a collection piece

It requires a touch of political finesse to assure it comes back your way a great bargain would be trading it to the player whos falling behind but it adds interest to the board state and often sparks interesting deals that you wouldn't get otherwise

When this card is Summoned: You can Special Summon 1 Level 4 or lower monster from your hand or GY, then if that monster is a Tuner, you can increase this card's Level by up to 3 until the end of this turn

Im not sure how they made it in there, but Ive been searching a lot of cards for at least a year and dont think Ive ever seen them so that would make sense