Deadly Shade is one of the powers Emily or Corvo can acquire. It summons a Doppelgänger that can fight enemies and assassinate when undetected. It costs 3 runes.
Prerequisite[]
Strategic tips[]
Summon an ally by holding and releasing 
. Your Doppelgänger can engage in combat with enemies, or even assassinate them, when undetected.
Doppelgängers can help you eliminate enemies, or distract them while you slip away.