Sly Viper

The Sly Viper is a white Mini-Viper that can be used as a weapon and is found in 9443 Rattlecopter.

Ninjago.com Description:
These venomous vipers are Fang-Suei's mini snake minions. Don't be fooled by their size - their poison is still strong enough to turn victims into snakes.

See also:

 * Golden Viper
 * Toxic Viper
 * Hypno Viper

Trivia

 * In Ninjago:Rise of the Snakes (App) the Baseball Player uses this as a weapon.