mega evolution enhanced booster box with promo Pokemon Sealed Case style promo card featuring Bulbasaur Pokemon Center - Mega Evolution

C Common Evil HERO Infernal Prodigy X DARK Level 2 [ FiendEffect ] ATK 300 DEF 600 If you control no monsters, you can Special Summon this card (from your hand) in Attack Position

How desirable are the cards

Arkham Horror 3rd Edition is slated to release in late 2019

The second a collector purchases one and then stores it away, the value of every other one on the market increases to match the scarcity

There are several infamous Umbreon cards on the market that most collectors would probably argue should make this list over Umbreon V, like Moonbreon (Umbreon VMAX from Evolving Skies), and Sunbreon (Umbreon ex from Prismatic Evolutions), but Umbreon V is an underrated gem

Sol Ring: Helps ramp toward expensive colorless planeswalkers