It received a bit of an unintentional nerf recently
There was a thread a few months back for the Pok-Emotions game with a focus on Sleepy linked here which would likely give you a starting point, but I would imagine it is not all inclusive to every card with a sleeping Pokemon
So, we've done a deep dive to find some of the other fantastic collectible card games the market has to offer
This makes many staple cards way more affordable than ever before, which is especially great for Yu-Gi-Oh
Fire Fists do have options for Fusion and Synchro monsters which are integral to a Fire Fist Deck's strength, but instead you can double down with more Rank 3 and Rank 4 Xyz monsters, which the archetype is known for having a good engine
While this card is up on the field, all DARK-type monsters you control with level 4 or less can attack your opponet directly