mtg cards 2018 SDCC Exclusive Planeswalkers Revealed but not legal in Standard Amazon.com: Magic: The Gathering Gift

Summer Magic: Summer magic was intended to fix a whole bunch of printing errors from Revised

On the one hand, the color matters: A Mythic Rare (= orange symbol) is often worth more than other cards

As pointed out by Opposite-Occasion881 indirectly, a misprint with a lot of availability will go for less because it is less collectible

As logical and likely tempting as this may sound, be careful doing this, particularly if you have to jeopardize vital colored mana sources

Thanks for reading, and happy collecting!

Tidus, Yunas Guardian Tidus, Yunas Guardian is another commander whose usefulness in his deck will be entirely decided by the accompanying cards, but its easier to imagine what that could look like