The Badger Rainbow Deck is an expansion for the playing card system of the basic Badger Deck and uses the same card back (and is therefor compatible with the other cards in the "Badger Deck" card system). It consists of a large single suit deck with cards numbered from 0 to 120. The cards are colour coded in a complete rainbow gradient, shifting from purple (0), violet (10), blue (20), cyan (30), teal (40), dark green (50), light green (60), yellow (70), orange (80), red (90), pink (100), magenta (110) and back to purple (120).