yugioh cards like polymerization [DPYG-EN020] Super Rare but you lose LP equal to the total ATK of the monsters banished this way Heavy Polymerization | Yu-Gi-Oh TCG

Also, a 2/1 for two mana isn't very good when we'd rather be playing our commander on turn two

The most convincing ones have been sticker fronts on genuine backs

Search Shop Shop by Categories Blastoise #2 Pokemon Celebrations Trading Card CGC 10 GEM MT Graded product details specifications Features Blastoise #2/102 from the Pokmon Celebrations Classic Collection has been professionally graded CGC Gem Mint 10, making it a premium collectible for Pokmon TCG fans and collectors

Creating a simple cost threshold wont work because cards that are near the threshold and constantly going over and under would be nightmarish not just for us, but for players