metalgreymon digimon card has some very cool and unique promos, the most popular being the Holo North American version that came with the PS1 game (Digimon world) numbered up to 100k, I was lucky 3 from LV4 EX-09 Versus Monsters] MetalGreymon :

PS Platinum Secret Rare QCSE Quarter Century Secret Rare True King Lithosagym, the Disaster X EARTH Level 9 [ WyrmEffect ] ATK 2500 DEF 2300 If this card is in your hand: You can destroy 2 other monsters in your hand and/or face-up field, including an EARTH monster, and if you do, Special Summon this card, and if you do that, and both destroyed monsters were EARTH, you can also look at your opponent's Extra Deck and banish up to 3 monsters from it with different names

Even decks that are high in one-mana creatures are often packing multiple copies of the powerful artifact

After that, Special Summon "Fallen Token" (Beast/Ground/Level 1/Beast/Ground/Level 1/Beast/Ground/Water/Beast) up to the number of Fallen Counters on this card

The power to be selective about what you clone and even create more than one copy of particularly strong creatures makes this a truly potent card

Activate 1 "The Sanctuary in the Sky" directly from your Deck or add 1 monster that specifically lists "The Sanctuary in the Sky" in its text from your Deck to your hand, then if "The Sanctuary in the Sky" is on the field or in the GY, you can gain 500 LP for each "Hyperion" and "The Agent" Monster you control