Swaptastic fetchquest time! Just like Seasons, you need to take item A to person B to get item C to take to person D to get item E, etc. And, at the end, I got the Nobel Sword for my troubles. However, since I have the Secret to get the Master Sword, I inputted that and now have the most powerful sword in the game. That should make things a bit easier here on in!
Also on my travels, I found Tingle again, who gave me more seed carrying 1337 powaz, and also stumbled across a couple of pieces of heart, giving me another full heart. Only two left now (and two dungeons to go too), so I should have a full set by the end of the game.