Dunb Hammer

 is a hammer.

Crafting
It can be made by a Hammer Smith from
 * 21 Polished Stone fragment
 * 15 Kaliptus Wood
 * 15 Dark Bamboo Wood
 * 10 Dreggon Warrior Horn
 * 10 Holy Bambooto Amber
 * 8 Mama Koalak Bone
 * 2 Bone of the Maho Firefoux Ghost
 * 1 Mega Legendary Crackler Rock - not same as the Legendary Crackler Rock