Daigunder is the merged form of Reyuge and Daigu. He is capable of armour fusing with Ginzan, DragoBurst, DragoFlame, DragoFreeze, Despector or Trihorn, sometimes more than one of them at a time. Daigunder armour fuses with DragoBurst to form Legendary Battle Warrior Dragon Daigunder, when combined with DragoFlame and DragoFreeze, is supposedly the most powerful battle-robot in the series.