|Upgraded From||>>||Graviton Hammer||>>||Upgraded Into|
|Shell Hammer||Torment Hammer|
|MHF2 and MHFU: Hammer and Hunting Horn Tree|
- The word 'Graviton' refers to a hypothetical elemental partical which mediates the gravitational force in the framework of quantum field theory. It is also believed to be massless(if it ever confirmed to exists).