pokemon dark energy card TCG Basic Darkness (STD) Prize Pack S3 236/203 / Secret Rare Card Type / HP / Stage Energy card | Pokémon Wiki

The Warring Triad* A very interesting take on a 3 mana rock that helps you advance your general gameplan until Kefka gets in the way (represented by 8 or more cards in the graveyard) and then it unleashes plenty of power

Yes, both formats are singleton 100-card formats, but thats where the similarities end

Fuel the Flames

Is a card like Harsh Mentor enough of an impetus to submit an updated version of your deck so it can get scraped by EDHREC

But they arent key to the card, and even the art is whimsical, but printable in a black bordered set

Harnessed Lightning could just be Incendiary Flow, of course, but it does a couple of very important things in this list