Dust of Appearance

Dust of Appearance is an Item purchasable from the Ancient of Wonders. The magic dust in this pouch will cling to units, preventing them from hiding through invisibility.

Additional Information
The Dust of Appearance is a direct counter to invisible units. It comes with two charges and lays down an area of revealing dust that will reveal any invisible Hero inside of it. Though it doesn't last long, the effect will also prevent them from turning invisible again. The dust can be used to counter invisibility. It also reveals Heroes hidden through abilities, such as the Weaver's Windwalk, but will only reveal them. Any other effects will still apply.

It cannot be used to reveal wards.

Reveal
Places a debuff on all enemy units within 1050 AoE that reveals them and prevents them from turning invisible. Lasts for 12 seconds, costs 5 Mana, and has a 60 second cooldown.