real rarest pokemon card A rare fetched a record $20.8 million including the buyer's premium, making it the most expensive Pocket Monster trading card ever sold in a public auction. The card was consigned The Most Expensive Rainbow Rare

This is a very broad question, answer to which will depend on what you value to be good

What set is Flame Dragon King ST13-017 from

As such the best thing this does is make a dork at instant speed and mess with control players

2) is this card rare/valuable (Ive read mixed things online) Any feedback is appreciated!

We've seen some other semi-popular Kamigawa cards like Oboro, Palace in the Clouds and Minamo, School at Water's Edge maintain huge prices despite fairly low play, which means if Shining Shoal does develop into an archetype staple in Modern, its price could climb even higher

From the Planechase - Planes set.