Augy's Basement [potion store] 's inventory should include Brewer's Elixir

[zerotje]

Augy is the brewer that teaches you Brew Potion for 1,000 gp and he owns a potion shop.
But he does not sell Brewer's Elixir. The item you can cast spells on to determine the maximum cost of brewing said spell.

Seems like an item a brewer would sell.

[Howlando]

Done.