Find the small cave at the peak to get the two items from a chest inside. The other way to obtain the Hylian Shield and Campion Tunic are collecting them on the peak of the Throat Of The World, which is the highest mountain in the game. Repeat this process until you have the whole gear set.
If you do not get any of the gear set, wait one day and try again. The way to obtain all three items is by chance using The Legend Of Zelda amiibo. The Master Sword can only be obtained using amiibo. There are two ways to obtain the Hylian Shield and Champion Tunic from The Legend Of Zelda series. Please let us know about any of the content that does not work below. Most of the content below should still work on the Switch version, but some of the exploits may have been fixed. Note: All of the content below worked on other versions of the game.