Diablo Wiki

The Spectral Elixir is a unique Potion that is received when the Black Mushroom quest is completed in the original Diablo.

In game

The Spectral Elixir is created by Pepin when the player brings him a Demon's brain. The player is asked to bring the Spectral Elixir to Adria but as she no longer needs it upon the quest completion, the player is allowed to keep it.

When the player consumes the Spectral Elixir, all stats are increased by 3.