Shadow Demon build & guide (7.41)

Disruption

Banishes the targeted unit from the battlefield for a short duration. Upon returning, two illusions of the banished unit with bonus base damage are created under Shadow Demon's control.

Disseminate

Whenever the target takes damage, all enemies, including the target itself if it is an enemy, within 675 range of the target also receive a portion of that damage. Can target enemy and allied units. Effect is paused if the target is hidden by Disruption.

Shadow Poison

Deals damage in a line, and afflicts enemy units with a poison effect. The poison deals 1/2/4/8/16 times the stack damage based on the number of stacks on the target, up to 5 stacks. Additional stacks cause 60 damage each. This deferred damage is dealt when Shadow Poison's duration is expired, or the Release sub-ability is used.

Demonic Cleanse

Cleanses the target allied unit, removing negative buffs for the duration. At the end of the duration, the unit is healed. Units under the effect of Disruption can still be affected by Demonic Cleanse. DISPEL TYPE: Basic Dispel

Demonic Purge

Purges the target enemy unit, removing positive buffs, and slowing the target for the duration. The unit slowly regains its speed until the end of the duration, upon which damage is dealt. Units under the effect of Disruption can still be affected by Demonic Purge. DISPEL TYPE: Basic Dispel

Aghanim's Scepter: Causes Demonic Purge to break and gain 2 charges.

Menace

Shadow Demon's Attacks apply a stacking debuff to the enemy for 8 seconds that increases their damage taken.