sword & shield fusion strike booster box SWSH Pokémon 20 powerful Pokémon V Pokémon TCG: Sword & Shield-Fusion

Lower Text - Promo Info booster DOUBLE DIAMOND [BT-06] CLOSECLOSE BT6-078 SR Digimon Lv.5 SkullGreymon Color Purple Form Ultimate Attribute Virus Type Undead DP 7000 Cost 8 Digivolve Cost 1 3 from Lv.4 Digivolve Cost 2 - Upper Text When you trash this card in your hand using one of your effects, you may place it under 1 of your purple Digimon at the bottom of its digivolution cards.[When Attacking] You may trash 1 card in your hand to have this Digimon get +3000 DP for the turn

Fury Charm

And what is the rarest Yu-Gi-Oh

There is currently one ("Gearfried the Swordmaster": 2600 3600 4100/2200)

It previously rose to around its current price not long after release, after becoming part of a popular Pioneer deck, before falling back down