Wall of text incoming
This was supposed to be only like 3 sentences long but I really liked this so I turned it into a non shitpost.
A giant guardian that acts like a Colossus from Shadow of the Colossus. You have to climb on top of it and attack it’s glowing weak points in order to kill it. It’s about the size of Dark Beast Ganon and is an optional boss that you can fight whenever, and fight numerous times. Killing it gives you one of two things: Agro, the horse from the game, or The Sword of the Sun.
Agro has infinite stamina (like the giant horse) and already has the maximum bond and best temperament, but isn’t that fast and has the weakest strength possible. Unlike her namestake in SotC, she CAN be killed, but can still be revived by the horse god or by defeating the Guardian again.
The Sword of the Sun does 60 damage, has really good durability, but cannot be thrown. Instead, if you hold the ‘throw’ button while standing in the sun, a beam of light emanates from the sword and points at whatever you’re currently tracking with the Sheika Slate, even if you can’t detect it at the moment. If the target is moving, the beam will move. It acts like a quest arrow in that it will direct you to the proper path to get to your destination instead of telling you to go through a mountain or something. You can only have one at a time. When it breaks, you can get it back by defeating the guardian again or by purchasing it from that guy in Tarry Town that sells the rubber armor and Hylian Shield.