From Dota 2 Wiki
Most smeevils find contentment in the endless tasks of a servant's duty, rarely creatures of idle thought. Banished to his post from a role in the lanes, Ar'zurm the Smeevil sees things differently.
This ward for The International 2016 can be upgraded with 4 different Smeevil's Penance Upgrade Style items. Upgrades unlock different colors.
This ward comes with The International 2016 Battle Pass. Additional style unlock items can be obtained by leveling the Battle Pass.
Style Unlock Items