Card Rulings:Megarock Dragon


 * You must remove from play at least 1 Rock-Type monster in your Graveyard in order to Special Summon "Megarock Dragon".


 * The original ATK of "Megarock Dragon" is determined by its effect. This is further doubled/halved by "Megamorph" and other effects that are based off of original ATK. So if you Special Summon "Megarock Dragon" with an original ATK of 2100 points, then equip it with "Megamorph", its ATK will be 4200 or 1050 depending on your Life Points.


 * If "Skill Drain" is active while "Megarock Dragon" is in play, the effect of "Megarock Dragon" is negated and its original ATK and DEF are treated as zero. Even if "Skill Drain" is destroyed later, the original ATK and DEF of "Megarock Dragon" will remain zero.


 * If "Megarock Dragon" is flipped face-down, or removed from play, or sent to the Graveyard, its effect is wiped and its original ATK and DEF are zero.

Mentions in Other Rulings

 * Option Hunter: If you send a monster to the Graveyard for "Option Hunter" that has undetermined ATK, you gain 0 Life Points. ("King of the Skull Servants", "Megarock Dragon", "Maju Garzett", etc.)