How do you tell what rarity a Yu-Gi-Oh card is?
Modern Super Rares have holofoil artwork, Level, and Attribute icons. Older Super Rares will only have holofoil artwork. Ultra Rares are identical to Super Rares, but they have gold foil lettering on the card name. A Secret Rare has a rainbow-colored foil that's applied to the artwork, card name, Attribute, and Level.
What is the rarest rarity in Yu-Gi-Oh?
Tyr, The Vanquishing Warlord is the rarest and most valuable Prize Card that could be obtained from a Yu-Gi-Oh! World Championship, with Tyr being the prize for the 2008 event. Its esteemed status has made it one of the most sought-after Prize Cards, and one of the rarest Yu-Gi-Oh! cards ever.