"Y-Dragon Head" + "Z-Metal Tank". This card cannot be Special Summoned except by removing from play the above cards on your side of the field; then you can Special Summon this card from your Fusion Deck (You do not use "Polymerization"). Discard 1 card from your hand to destroy 1 face-down Monster Card on your opponent's side of the field. NEW TEXT: "Y-Dragon Head" + "Z-Metal Tank". This card can only be Special Summoned from your Fusion 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.
"Y-Testa Drago" + "Z-Carro Armato Metallico"
Deve prima essere Evocato Specialmente (dal tuo Extra Deck) bandendo le carte sopra indicate che controlli. (Non utilizzi "Polimerizzazione".) Non può essere Evocato Specialmente dal Cimitero. Puoi scartare 1 carta, poi scegliere come bersaglio 1 mostro coperto controllato dal tuo avversario; distruggi quel bersaglio.