Megarock Dragon [DR3-EN195] Super Rare Cybernetic Revolution The ATK and DEF of

The ATK and DEF of a monster that destroys this card as a result of battle is decreased by 500 points

Screw Serpent"

All monsters your opponent controls are changed to face-up Attack Position (Flip Effects are not activated) and lose 500 ATK as long as they remain face-up on the field

you can treat this 1 monster as 2 Tribute Monsters for the Tribute Summon

Megarock Dragon [DR3-EN195] Super Rare Cybernetic Revolution The ATK and DEF ofSet: Dark Revelation Volume 3 Card type: Effect Monster Rarity: Super Rare Attack: ? Defense: ? This card cannot be Normal Summoned or Set. This card cannot be Special Summoned except by removing from play a Rock Type monster(s) in your Graveyard. The original ATK and DEF of this card become the number of Rock Type monsters you removed from play when you Special Summoned this card x 700.