one piece base set booster box TCG: Legacy of the Master [OP-12] color leader cards join the fight ONE PIECE CARD GAME -

BT7-077 U Digimon Lv.6 Nidhoggmon Color Purple Cost 12 DP 11000 Digivolve Cost 1 Purple 3 from Lv.5 Form Mega Attribute Virus Type Dark Dragon Card Text 1 [Effect] When you trash this card in your hand using one of your effects, gain 1 memory

I honestly dont get this one

At the time, this was the only official representation of those cards, and they were not avaliable for the general playerbase to use

Additional alternative characteristics appear upside down on the card

Thievul Darkness HP110 Stage 1 Evolves from Nickit Ability: Sneaky Snatch Once during your turn, when you play this card from your hand to evolve 1 of your Pokmon, you may look at your opponents hand, choose 2 Energy cards you find there, and have your opponent shuffle them into their deck

It enters with that many +1/+1 counters on it.) Whenever this creature enters or attacks, target opponent loses X life and you gain X life, where X is the number of +1/+1 counters on it