Oh, dear. It seems you are looking for an extremely rare ingredient: wood elf blood. Let me see what I can do......
*Elf consults ancient texts, scrolls, and ancient journals*
Ah, I see! You'll need to find a forest spirit who has been in the service of wood elves for generations. They may be able to help you locate the elusive wood elf blood. However, this spirit is known for being quite secretive and elusive. You may have to perform a task or make a sacrifice to gain their trust. Do you think you can do that?