Royal Tribute [DR1-EN039] Common Quick Play Spell Special Summon 1 "Dark Magician

Special Summon 1 "Dark Magician Knight" from your hand

Once per turn: You can change 1 face-down Defense Position "Subterror" monster you control to face-up Attack or Defense Position

You can only use this effect of "Dual Assembwurm" once per turn

All of the cards in the original Hidden Arsenal series were either Super Rares or Secret Rares

There can only be 1 face-up Malefic monster on the field

Royal Tribute [DR1-EN039] Common Quick Play Spell Special Summon 1 "Dark MagicianSet: Dark Revelation Volume 1 Card type: Normal Spell Rarity: Common Attack: 0 Defense: 0 This card can only be activated when your "Necrovalley" is on your side of the field. Both players discard all Monster Cards in their hands to the Graveyard.