From Dragon Quest Wiki

Gigathrow is a recurring ability in the franchise designed for Boomerangs. It strikes a single foe like lightning.


Dragon Quest VIII: Journey of the Cursed King[edit]

The Hero can use Gigathrow as a boomerang technique after investing 100 skill points into the associated skill. damage is calculated as ([LVL x 2 + 125] +/- 10%) for a maximum range of 233~284, and will cost 15 MP.

Dragon Quest IX: Sentinels of the Starry Skies[edit]

Gigathrow can be used by any character that has the "Boomerang Bible" (quest #86) item in their inventory. Damage is calculated as ([LVL x 2.5 + 125] +/- 15%) for an upper limit of 274~372. The technique uses 16 MP, and carries the light attribute.