Octopus Tournament

From: Cardsharp
Description: My dear friend, you’ve found so many items with the image of an octopus! It’s all definitely related! Now the City has to answer the main question: how do I, Cardsharp, get to the secret card tournament? Let’s appease the City with artifacts first.
Completed: The City revealed a potion in a wonderful octopus-shaped bottle! So, to get to the secret tournament, you not only need to find all the signs, but also drink a potion from this mysterious bottle? Okay... Ugh! What is this? I can’t believe it! It’s octopus ink!