Which Japanese Pokemon sets will be worth the most
Speaking of Sheldon, make sure you check out his most recent column, What Decks Are Coming With Me to SCGCon
This can be through one sided-effects like Winds of Abandon, or cards that give you a benefit such as Decree of Pain, but best of all is when you create that discrepancy through card selection - skipping on artifact ramp and running Vandalblast can rocket you ahead of the table
In fact, the only reliable ways to get rid of them are to use them for a tribute summon, have them be destroyed by battle, or use a card effect like Dark Hole
Honorary Mention: Rainbow Rare Introduced with Sun & Moon and ending with Sword & Shield , Rainbow Rare is a discontinued rarity that featured identical artwork to another full-art card in their respective sets but recolored with a rainbow gradient on the character artwork and background