The 20 Greatest Ultimate Rares In Yu Gi Oh TCGplayer Most Expensive Grand Master Rare Cards From Yu Gi Oh! LIMIT OVER COLLECTION THE HEROES , here are the Top 10 most expensive cards when they appear as Grand Master Rare (Serial Numbered). Bit random, favourite and or least favourite Yu Gi Oh card rarity? Favourite would have to be Secret Rare and least would have to be Ultimate Rare. It works for some cards but I feel The 29 most expensive Yugioh cards and prices