Shadow veil (invocation)

Shadow veil, sometimes known as darkness, is an invocation used by some warlocks, particularly inexperienced ones, that allows them to cloak themselves in magical darkness for a brief moment. This makes the warlock more difficult to detect, allowing them to hide or vanish from sight. The spell is relatively easy to use and warlocks require only a short rest between castings in order to regain the power necessary to cast it.