This papercraft is a life size Juggernaut's Mask, from the DotA 2 multiplayer online battle arena video game, the paper model was created by Ilya Gladkov. You can use this paper model for cosplay. There is also a Juggernaut's Sword Papercraft on the site available.
Yurnero the Juggernaut is a melee agility hero whose abilities allow him to sprint into battle and recklessly devastate enemies in an impenetrable flurry of blades.
His abilities grant invulnerability and spell immunity, turning him into an unstoppable force on a hairpin. Juggernaut is strong both offensively and defensively, and deals heavy damage both physical and magical with his Blade Fury and Omnislash ultimate, but he possesses below average strength and intelligence attributes, so he does not have as much health and mana as other heroes and is vulnerable when his abilities are on cooldown. For this reason, although his abilities make him powerful even in the early game, he cannot charge into forces without restraint until farmed and is usually played as a carry. [Source: GamePedia]
You can download this papercraft template here: DotA 2 - Life Size Juggernaut's Mask for Cosplay Free Papercraft Download [DropBox]