I'll make this a quick face shot.
I have been playing BotW for a while, more than most people I know, and I recently decided that it would be a good idea to take on Calamity Ganon(since I haven't found all the temples, or the memories) and then do it again once I have found all the memories in order to see both endings.
If you are like me and have been holding out, you need to go ahead and hit Hyrule Castle at least once. The place is a fucking treasure trove. Not only did I stock up on Guardian parts(springs, gears, and the way too abundant screws) but I was able to kill multiple white enemies, which usually give high dollar and valubale gems, but I fought some low level Lynels which I will use to buff up my barbarian gear. These are great for later on in the game.
On top of all that, there are multiple chests in the area that contain dragon parts, as well as fallen star pieces that seem to only fall close to the castle. If you have spent the cash and parts on the Ancient Armor Set, then you can pretty much crush any guardian you come across. A blast from a full walking guardian only took away half a heart when I had the Ancient Armor Set equiped even at a low level.
One piece of advice, that I learned the hard way, do not approach the castle at night. Not only do you have multiple enemies attacking you in conjunction with the guardians, but you have the asshole skeletal enemies popping out and adding to the frey.
I have yet to aquire the Champions Tunic which I will update this blog once aquired.
Any more advice on tearing up Hyrule?