Ethereal Blade

Ethereal Blade does two completely different things depending on who you cast it on, and understanding both is the whole item.

On an enemy: they go ethereal for 4 seconds. They cannot attack, they move at a crawl, they take significantly more magic damage from every source, and they absorb a burst of damage on impact scaled to your total attributes. On a hero with high all-attribute stats—which the 7.40 rework made Ethereal Blade explicitly target, replacing the old recipe with Ultimate Orb and giving huge bonuses across all three attributes—that damage hit is enormous. You are not just setting up a kill; you are dealing a massive chunk of damage while simultaneously making the target physically harmless and a sitting target for every spell your team fires.

On yourself: you go ethereal and become immune to physical damage. You cannot attack either, but a carry diving onto you with a full right-click build suddenly cannot touch you for 4 seconds. That is the self-save—not against spells, not against magic bursts, but against the physical damage cores who are trying to delete you before you can finish your combo.

The item also passively amplifies your magic damage output through the large all-attribute bonus feeding into spell damage scaling. On intelligence heroes especially, every point of intelligence you gain makes your spells hit harder, and Ethereal Blade's stat package is the most all-attribute-dense single item in the game outside of Bloodstone territory.

On intelligence burst heroes who are already building toward a one-shot combo and need the final damage amplifier to close it. Lina, Lion, Skywrath Mage, Death Prophet, and Pugna are heroes who are already dealing enormous spell damage but need that last burst to actually kill a target rather than leaving them at a sliver. Ether Blast into full combo is a kill confirm, not just a damage boost. The 4-second window of pure magic vulnerability with an 80% slow means every spell your team fires in that window hits harder than it normally would.

Morphling is the classic example. His attributes are extreme enough that the Ether Blast damage alone is fight-winning, and the defensive self-cast turns him from a hero who dies to right-click carries into a hero who laughs at them while his spells tear someone apart.

The self-cast use case is also legitimate on right-click agility carries who want protection against dive-heavy lineups without sacrificing damage output. Ghost Scepter is the budget version of the same idea. Ethereal Blade is what you build when you already want the stats and can afford the full upgrade.

Skip it when the enemy team is primarily magic damage. Going ethereal does not protect you from spells—it protects you from physical attacks only. And skip it when your hero's damage is primarily physical. The Ether Blast damage scales with your attributes, but putting a target in ethereal form also makes them immune to physical damage, which means your right-click carry teammates cannot capitalize on the window you created.