Shadow Demon is a great Support hero because of his skills and flexibility to play during the game. Although he is a flexible one, a great player is indeed to control him to execute a great play. And when the combination of the controller and a great supporting items, he can be powerful in ganking his enemies.
The early game item build for Shadow Demon can be the following:
Ironwood Branch – This item grants each attributes for Shadow Demon giving him more strength and toughness to survive the early game plus the intelligence for mana support.
Ancient Tango of Essifation – This item helps Eredar to regenerate when in mid health condition.
Healing Salve – This item helps Eredar to regenerate more fast whenever he is in a low health condition.
Magic Stick – This helps you to counter spell caster enemy heroes.
Observer Wards – This is a strategic item to spy on your enemies. Supporting heroes just like Shadow Demon should do the warding strategy. This should maintain through the whole game.
Clarity Potion – This item helps Shadow Demon to regenerate his mana whenever it is in low condition.
Smoke of Deceit – This supportive item helps Shadow Demon and his allies to set a clash or gank against his opponents during the early game. This should be maintain through the whole game.
Sentry Wards – This strategic item helps Shadow Demon to deward a spying observer ward nearby.
Boots of Speed – This grants Shadow Demon movespeed for chasing and escaping.
The mid game item build for Shadow Demon can be the following:
Headdress of Rejuvenation – This may help Shadow Demon for better health regeneration.
Medallion of Courage – This can do the killing faster because of armor degrading.
Urn of Shadows – This can help Shadow Demon to serve himself and his allies in health regeneration. And also can do damage to enemies.
Magic Wand – This helps you to regenerate your mana and health in an instant depending on its charge.
Arcane Boots – This grants Shadow Demon and his nearby allies mana whenever its cooldown.
Ancient Janggo of Endurance – This grants Shadow Demon and his allies attack speed and movespeed.
The late game item build for Shadow Demon can be the following:
Mekansm – This provides Shadow Demon and his nearby allies armor and hitpoints.
Khadgar’s Pipe of Insight – This helps allies of Shadow Demon and himself to prevent magic for damaging more.
Force Staff – This helps Shadow Demon in chasing and escaping.
Eul’s Scepter of Divinity – This grants Eredar the ability to cyclone enemies and himself for chasing, setting and escaping.
Dagon – This grants Shadow Demon an ability to instant kill an enemy.