Dragonbone Boko Bat
"Used only by the toughest Bokoblin warriors, this Boko bat has been fortified by fossilized bone. It boasts a high durability and is strong enough to beat down powerful foes."
The Dragonbone Boko Bat is a two-handed weapon found in Breath of the Wild. It has a base power of 36, and is typically wielded by Black Bokoblins all over Hyrule. In appearance, it is reminiscent of the Boko Bat, but many large bones have been affixed to the wood to greatly improve the damage-per-second of the weapon. It is wooden in design, meaning it will set fire if it is brought close to a flame.
With a power of 36, it is twice as powerful as its Spiked Boko Bat counterpart, but only slightly more durable. These strong weapons are not too common in the overworld and are occasionally seen being used by Black Bokoblin in the overworld. A few can be found in the Maritta Exchange Ruins and the areas adjacent to that region.
Hyrule Compendium entry of the Dragonbone Boko Bat.