Rainbo may be given to any player who must roll the eight 12-sided dice (Violet, Orange, Green, Yellow, Blue, Black, Red and Pink – Perfectly Pink Booster Deck). All bunnies in The Bunny Circle that are the same color (or half color) as the lowest die rolled are killed immediately. If Black is the lowest die rolled, then all bunnies in The Bunny Circle must die (discarded) regardless of their color or kind (including Specialty bunnies and Celebrity bunnies – Violet and Ominous Onyx Booster Decks). Players (or groups of players) that are isolated by a Barrier on both sides are protected.
Rainbo cannot kill a bunny with The Heavenly Halo or the Holographic Bunny.