Fiend Sword + Wood Remains → Armored Zombie

Fiend Sword + Dark Assailant → Armored Zombie

Fiend Sword + Candle of Fate → Flame Swordsman

Fiend Sword + Dissolverock → Flame Swordsman

Fiend Sword + Mavelus → Flame Swordsman

Fiend Sword + Holograh → Cyber Soldier

Fiend Sword + Fireyarou → Flame Swordsman

Fiend Sword + One-eyed Shield Dragon → Sword Arm of Dragon

Fiend Sword + Cyber Soldier of Darkworld → Cyber Soldier

Fiend Sword + Wicked Dragon with the Ersatz Head → Sword Arm of Dragon

Fiend Sword + Yaranzo → Armored Zombie

Fiend Sword + Takriminos → Sword Arm of Dragon