Celtic Guardian + Mystic Lamp → Dark Elf

Celtic Guardian + Pendulum Machine → Dark Elf

Celtic Guardian + Steel Scorpion → Cyber Soldier

Celtic Guardian + Saber Slasher → Cyber Soldier

Celtic Guardian + Yaiba Robo → Cyber Soldier

Celtic Guardian + Metal Dragon → Vermillion Sparrow

Celtic Guardian + Mechanical Spider → Cyber Soldier

Celtic Guardian + Bat → Cyber Soldier

Celtic Guardian + Giga-tech Wolf → Cyber Soldier

Celtic Guardian + Shovel Crusher → Cyber Soldier

Celtic Guardian + Blocker → Cyber Soldier

Celtic Guardian + Blast Juggler → Flame Swordsman