Coliseum Ruins

The Coliseum Ruins are a location in.

Features and Overview
The Coliseum Ruins are located in Central Hyrule, northwest of the Great Plateau. Pools of Malice coat the outer walls while several Black Bokoblins, Black Lizalfos, and Black Moblins patrol the interior. A Lynel can also be found in the center of the Coliseum. Weapons wielded by these enemies and the Lynel scale up depending on how many Divine Beasts have been freed. If the four Beasts are released, all the enemies inside will carry elemental weapons. A Treasure Chest containing a bundle of five Bomb Arrows can be found on the northern wall. A Chest containing an Amber is located on the southern wall. A Korok can be found under a Rock on the northern wall of the Coliseum.

In The Master Trials DLC Pack, the Phantom Helmet can be found inside a Treasure Chest stuck in the ground at the northwest side of the Coliseum.