Items / Shadow Blade
Shadow Blade costs 3,250 gold in Dota 2 patch 7.41f.
Makes you invisible for 17 seconds, or until you attack or cast a spell. While Shadow Walk is active, you move 20% faster and can move through units. If attacking to end the invisibility, you gain 175 bonus physical damage on that attack.
Has a 0.3 second fade time. If the invisibility ends without attacking, the bonus damage is lost.
The blade of a fallen king, it allows you to move unseen and strike from the shadows.