Forum:What comes in a Tin Box Collection..?

Well i'm thinking about making a crystal beast deck.. but i don't want to spend too much.. so im wondering what's in a YUGIOH! 07 HOLIDAY TINS - RAINBOW DRAGON Tin??

is it like contain cards to help rainbow dragon (structure deck)..? or some random card (booster pack)? or.. just rainbow dragon in a Tin box..?