This potion is made by using Spider + Witches Brew + Pool Noodle in the cauldron. This potion can’t be stacked to increase its effects.
The Long Rat Potion will transform you into a rat just like the Rat Potion but longer & stretched out.
You can add a saddle potion to the Long Rat Potion to make a free mount that your friends can ride around on.
Other than to make you look funny, this potion doesn’t have very many uses in the game.
This Potion is spell number #118 in the potions book.