This potion is made by using Pet Tags + Spider in the cauldron. This potion can’t be stacked to increase its effects.
Drinking the Creepy Crawly Potion will spawn a pet spider next to you. The pet spider will follow you around the map while you play around with your potions.
You can pick the spider up in your hands or pet him.
Other than looking cute, pets don’t really do much for now.
This Potion is spell number #121 in the potions book.