Shadow Demon is a ranged character. His primary attribute is intelligence. The hero is mainly taken as a support. Most effective in the early and mid game.
At the laning stage, the hero is able to fight several enemies at once. Shadow Poison is a very useful spell that allows him to harass enemies in the laning stage, farm groups of creeps, and also provides vision in the selected area. Disruption is a very useful ability in team fights, which allows the character to save an ally or turn the strength of the enemy core against his own team. Soul Catcher allows Shadow Demon to significantly reduce the health of several target units at once, which can be very useful at the beginning of an attack. Aghanim's Shard will allow the hero to learn the Demonic Cleanse ability, which will allow the selected ally to conduct team fights more efficiently and partially ignore the opponents’ control. Demonic Purge weakens an enemy and makes it more vulnerable. The ability can be upgraded with Aghanim's Scepter, which will increase the effectiveness against enemies with passive abilities as well as allow the hero to save allies and deal damage to enemies more often.
Shadow Demon always felt that by taking possession of this fragile material world, he could get the key to total domination of all realities. Fearing this, Doom and Shadow Fiend briefly joined forces to destroy the burgeoning cult. It would seem that such a being of pure malice and malevolence, a threat to all creation, would be forever out of place in our world...yet Shadow Demon does not lack for followers.