Bladed Rhino Beetle
"This beetle's razor-sharp horns demand that you handle it with care. Boil the horns alongside monster parts to concoct an elixir that will raise your attack power."
Breath of the Wild
Bladed Rhino Beetles can typically be found on the sides of trees around Hyrule, most commonly in the grassy plains of Necluda. A group of beetles can be found on the trees as Link leaves the Shrine of Resurrection for the first time. They can be sold to shop-vendors all over Hyrule for 4 Rupees each.
A Bladed Rhino Beetle can be cooked alongside monster parts to create Elixirs. The Bladed Rhino Beetle will give Link an attack boost. When cooked with a monster part that has no specific enhancement, such as a Bokoblin Horn, Link will create a Mighty Elixir. This will temporarily increase Link's attack power. If Link cooks a Bladed Rhino Beetle along with food, it will result in Link making Dubious Food.
Age of Calamity
Consequently, the first scenario the player is likely to encounter them is the Challenge (Recommended Level Lv.11 - Lv.20) Mastering Stasis, where they are a Battlefield-Specific Material. This requires the completion of three Chapter 2 scenarios to unlock.
Hyrule Compendium entry of the Bladed Rhino Beetle.