Darkterror the Faceless Void is a melee agility hero generally played as an offlaner or carry. Given a little time, he becomes a terrifyingly powerful hero capable of destroying entire enemy teams in seconds.
Wielding his cosmically powered mace, each hit can lock his foes in time, stopping them in place. He can jump into or out of combat using Time Walk while simultaneously reverting recently taken damage. Darkterror can also pause his foes’ cooldowns with Time Dilation, lowering their attack and movement speed in the process. His ultimate, Chronosphere, locks time for everything within its area of effect, giving him time to strike down any enemies caught within with no resistance from them for several seconds. Though ideally, he wants teammates who can capitalize on Chronosphere, it’s one of the most devastating initiation spells in the game and can easily win team fights before his opponents can even react.*
Resource – DOTA 2 Wiki