XZ-Tank Cannon [MFC-053] Super Rare Retro Pack 1 but return it to the

but return it to the hand during the End Phase

except "Snake-Eye Ash"

when a Spell/Trap Card(s) is Set on your side of the field (except during the Damage Step): You can Special Summon 1 "Power Tool" Synchro Monster or 1 Level 7 or 8 Dragon-Type Synchro Monster from your Extra Deck

When your opponent's monster declares an attack

XZ-Tank Cannon [MFC-053] Super Rare Retro Pack 1 but return it to theSet: Magician's Force Card type: Fusion Effect Monster Rarity: Super Rare Attack: 2400 Defense: 2100 "X Head Cannon" + "Z Metal Tank" This monster can only be Special Summoned by removing from play the above monsters on your side of the field. You do not use "Polymerization" to Special Summon this monster from your Fusion Deck. Discard 1 card from your hand to destroy 1 face down Spell Card or Trap Card on your opponent''s side of the field.