XYZ-Dragon Cannon [DR1-EN107] Ultra Rare SWSH078 Set: HeartGold & SoulSilver: Unleashed

Set: HeartGold & SoulSilver: Unleashed Type: Water Rarity: Rare Retreat cost: Colorless

or other effects while this card is face-up on the field

draw 1 card for each different card name among those co-linked "Knightmare" monsters

the monster is Special Summoned on your side of the field in face-up Attack or Defense Position

XYZ-Dragon Cannon [DR1-EN107] Ultra Rare SWSH078 Set: HeartGold & SoulSilver: UnleashedSet: Dark Revelation Volume 1 Card type: Fusion Effect Monster Rarity: Ultra Rare Attack: 2800 Defense: 2600 "X Head Cannon" + "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 card on your opponent's side of the field.