Block Dragon [MP17-EN085] Ultra Rare Machine You can only activate 1

You can only activate 1 "Evil Eye Retribution" per turn

You can only use this effect of "Revendread Slayer" once per turn

You can only use each effect of "Zefra Metaltron" once per turn

or GY to this card

destroy all monsters your opponent controls

Block Dragon [MP17-EN085] Ultra Rare Machine You can only activate 1Set: 2017 Mega Tins Mega Pack Card type: Effect Monster Rarity: Ultra Rare Attack: 2500 Defense: 3000 Cannot be Normal Summoned Set. Must be Special Summoned (from your hand or Graveyard) by banishing 3 EARTH monsters from your hand and or Graveyard, and cannot be Special Summoned by other ways. Rock Type monsters you control cannot be destroyed, except by battle. If this card is sent from the field to the Graveyard: You can add up to 3 Rock Type