Part 973pb1191c01 : Torso Ninjago Snake with Lime and Red Scales Pattern ( Acidicus) / Dark Green Arms / Black Hands [Minifigure, Body:Minifigure, Torso Assembly] [BrickLink]
Amazon.com: Lego Ninjago Acidicus Minifigure : Toys & Games
The LEGO Ninjago Movie Video Game - Acidicus Unlock Guide/Showcase - YouTube