Metal Dragon + Armored Rat → Flame Cerebrus

Metal Dragon + Stone Ogre Grotto → Stone D.

Metal Dragon + Queen's Double → Vermillion Sparrow

Metal Dragon + Blue-winged Crown → Crimson Sunbird

Metal Dragon + Trent → B. Dragon Jungle King

Metal Dragon + Queen of Autumn Leaves → B. Dragon Jungle King

Metal Dragon + Invader of the Throne → Vermillion Sparrow

Metal Dragon + Mystical Sheep #1 → Flame Cerebrus

Metal Dragon + Hibikime → Vermillion Sparrow

Metal Dragon + Dokurorider → Curse of Dragon

Mechanical Spider + Thunder Dragon → Metal Dragon

Mechanical Spider + White Dolphin → Misairuzame