My first graded card was a very low-cost, low-end card: a grade 10 (from PSA) of an art rare Miltank from the Japanese set VSTAR Universe
The keyword has only been around since 2011, but its spawned some incredibly powerful cards and archetypes
For just R, it can go on an adventure and rummage one card (discard, then draw), and as a creature, it can pay 2R and discard a card to draw a card
Maui appears on multiple Lorcana cards in The First Chapter, with Maui, Hero to All being the standout when it comes to the most valuable Lorcana cards
For the rarest Pokmon cards, a one-point difference in their PSA grade can mean the difference between tens of thousands of dollars and well maybe ten dollars
4 Darkrai Another mighty monster from the Burning Shadows expansion, this Darkrai has the ability to knock out the adversary's active pokemon without needing to do damage at all