"Y-Dragon Head" + "Z-Metal Tank"This card can only be Special Summoned from your Extra Deck by removing from play the above cards on your side of the field. (You do not use "Polymerization"). This card cannot be Special Summoned from the Graveyard. Discard 1 card from your hand to destroy 1 face-down Monster Card on your opponent's side of the field.
How to Get
Discards for cost
Banishes from your field
Destroys your opponent's face-down Monster Cards
2 Fusion Materials / Semi-Nomi / Contact Fusion / Special Summons itself from your Extra Deck / Cannot be Fusion Summoned / Cannot Special Summon from Graveyard