Ethereal Blade

The Ethereal Blade is an Item purchasable at the Main Shop, under Weapons.

Ether Blast
Ether Blast converts you and target enemy unit into ethereal form. Target unit is slowed by 60% for 3 seconds and is dealt 75 + 2x your agility as magical damage. If you target yourself you won't be slowed nor damaged. Ethereal units take 40% extra magic damage and cannot attack or be attacked. Costs 50 mana, has a 30s cooldown and a 700 cast range. Shares cooldown with Ghost Scepter.

Additional Information
Can be disassembled.

Often used heroes
The "Etheral Blade" is often used on Agility carries, who can benefit well from the bonus agility, and have at least 1-2 spells with magic damage

Examples
Bloodseeker with "Rupture"

Morphling with "Waveform" and "Adaptive Strike"