There are 4 main levels.
There are also Infinite cards which are extremely rare (1 in 1000 packs!), and special editions, which are not available in packets
This is a rare card. You can tell because of the shiny edge.
This is a Super Rare 3D card. You can tell because of the marker on the back.
This is an Ultra Rare card.
This is an Infinite card.
This is a special edition card.