Ultra Rares, Secret Rares, Full Arts, and Alternate Arts Cards with high rarity and demandlike Full Art Charizards, Rainbow Rares, or Alt Arts like Umbreon VMAXare valuable and often targeted by collectors and investors
Nevertheless, if you need a tutor, there are still a few options you can choose from
From the Special Projects Unit For the last couple years I've been working on a bunch of Disney illustrations for their new card game Lorcana
Similarly, if you control multiple Assemble the Players, each one has a different casting permission that may be used once each turn
The concept alone sells it -- a Transform Pokemon rendered in that signature purple blob form, ready to become anything on the field