I loved this game; I was working on speed runs, but then I got distracted by minecraft. I used to know all about it, but when I took this quiz, that was the biggest brainfart moment I had in history. However, I think you convinced me to go back and play the game where I left off. Thanks.
In Skyward Sword, you cannot buy the Hylian Shield. The Hylian Shield is considered legendary due to its 'Immortal' status. There are three shields you can buy from the shop (Rupin): Wooden, Iron, and Sacred. Each of these have their ups and downs and can be upgraded two times to a better version of the shield. Also, they have . Wooden, like the Deku Shield, is burnable along with upgrades. The Iron Shield and its upgrades are conductive which makes it vulnerable to electricity. The Sacred Shield and its upgrades have the least durability but regenerate in time. The highest of the Upgrades, the Goddess Shield, are able to fend of Curse attacks and make the Cursed Bokolobins which first appear in the Ancient Cistern. The Hylian Shield shows Durability but it never goes down and is invulnerable to fire and electricity and curse. It is obtainable through the Dragon Lanayru and his tests which consist of re-battling the bosses you have already beaten.
I got all of them except The Imprisoned because it is misspelled, Faron Woods because I probably made a typo, and Batreaux which I genuinely didn't know. Great and very underrated game.