The second most expensive card ever sold is a 1998 Trophy Pikachu that was awarded as a prize at the first-ever international Pokmon Trading Card Game competition
Sauron, the Dark Lord Sauron, the Dark Lord has one of the highest "power floors" of any commander that has been printed in recent years: simply existing on the battlefield makes him a must-answer threat thanks to his huge stats, incredibly painful ward, the ever-growing army he summons that also replaces itself, and his ability to refill your hand
The average selling price of a PSA 9 example is roughly $325
They were getting KOs on our Pokmon from Turn 2
If so, you should try it out
You can watch this video about the card below, uploaded by smpratte, the person who appears to be the winner: With this one sold, theres another 19 out there somewhere