Hello I am the vendor before the final battle! Hmmmmm?!?! You've never heard of me???? A new customer yesss a new customer.... In that case we will give you one (1) item for FREE! For free yesss.... very good price. I have very nice stock, especially for being located inside such a nasty castle.

A helm. Protection will be key in this battle.

The health potion. You've noticed your companion limping up the steps.

A potion of calm for you to drink. You'll do best in this fight if your emotions aren't holding you back.

You refuse. This character is obviously shady.