"The Champions' Ballad" will include the following:

The Champions' Ballad

A mysterious voice beckons Link to challenge the Divine Beast Tamer's Trials. He must now prove himself by defeating enemies using the One-Hit Obliterator, conquering new Shrines, challenging a full dungeon, and overcoming many trials along the way. Once all challenges and trials have been bested, Link will obtain a new power known as the Master Cycle Zero!

Additionally, the bard Kass is traveling Hyrule to complete the unfinished song his teacher left behind. As Link and Kass chase their respective goals, Kass will share new original songs he wrote capturing lost memories of the four Champions and Zelda, previously unknown to Link. But that unfinished song... What could it be?

*To play The Champions' Ballad, you must first complete the Main Quest to free the four Divine Beasts.

9 clothing items hidden in treasure chests

Items honoring the legacy of The Legend of Zelda series will be hidden in 9 treasure chests scattered across Hyrule, including the Island Lobster Shirt, Ravio's Hood, Zant's Helmet, Phantom Ganon Skull, Phantom Ganon Armor, Phantom Ganon Greaves, and a Royal Guard outfit (complete with Royal Guard Cap, Royal Guard Uniform, and Royal Guard Boots).

Ancient Horse Gear

The Ancient Bridle will increase a horse's number of spurs while equipped. The Ancient Saddle will allow you to call your horse no matter how far away they are. Both of these items will appear in treasure chests somewhere in Hyrule.

More details on the official game page of The Legend of Zelda: Breath of the Wild DLC Pack 2 ...