A simple item that gives conceals the appearance of the wearer. It's rumored to be magical.

Nondescript Cloak - 350g
-Consumable and transferable.
-Changes the player model to a generic player model.
-"Cloaked Figure" replaces the name, hero, and level information.
-The user has a red/green minimap icon.
-True Sight reveals the identify of the wearer.
-The effect ends after 20 seconds or 250 damage.

Basically, a consumable item that conceals the identity of the user until 20 seconds or 250 damage. Any kind of magic immunity would break the effect. Enemies can see through the effect with True Sight, or figure it out by recognizing ability effects... if you see Pheonix Wave, you know it's Pyro. Animations could be generic or remain the same, generic would be easier. Auto-attack projectiles (if applicable) would remain the same.