shadow vs shadowless pokemon cards (x2): Psychic Energy & 101/102 Base Set! The Most Expensive Shadowless Pokemon
Description
I know 21 commander damage got decided on due to the original cycle of Elder Dragons having 7 power and you getting hit three times equaled 21 but the book quote is just so fitting for our format

I've seen so many fascinating comebacks after it seemed already lost

Over the course of Magics more than thirty years, however, there have been a few cards that break this rule

So, whats the big deal with graded cards

None of this is to say that Heliod is bad without Walking Ballista