OCG Rulings

• "Malefic Stardust Dragon" is a Special Summon monster.^[1]

• "Malefic Stardust Dragon" cannot be Special Summoned, except by the method written on the card.^[1]

• Suppose you control "Malefic Stardust Dragon" and a Field Spell Card. If your opponent activates an effect like that of "Demise, King of Armageddon" or "Final Destiny" or "Judgment Dragon" which would destroy "Malefic Stardust Dragon" and the Field Spell Card simultaneously, then the Field Spell Card is not destroyed since it cannot be destroyed by card effects.^[2]

• The effect of "Malefic Stardust Dragon" only prevents Field Spell Cards from being destroyed by card effects, such as that of "Heavy Storm" or "Mystical Space Typhoon". Thus, if your opponent activates a new Field Spell Card while you already have a Field Spell Card active, then your Field Spell Card is destroyed.^[3]

Malefic Monster Rulings

OCG Rulings

• You cannot Special Summon a Synchro Monster if it was not properly Synchro Summoned previously, such as if it was removed from play directly from the Extra Deck. Thus, you cannot use an effect like "D.D.R. - Different Dimension Reincarnation" or "Return from the Different Dimension" to Special Summon a "Stardust Dragon" which was removed from play to Special Summon "Malefic Stardust Dragon". Also, "Blue-Eyes White Dragon" and "Red-Eyes B. Dragon" are Normal Summon monsters, so they may be Special Summoned even if they are removed from play directly from the Deck.^[4]

• If the effect of a monster like "Malefic Blue-Eyes White Dragon" or "Malefic Red-Eyes B. Dragon" or "Malefic Stardust Dragon" is negated by an effect like "Skill Drain" or "Forbidden Chalice", then its effect which prevents your other monsters from attacking is also negated, so you can attack with a monster other than "Malefic Blue-Eyes White Dragon".^[5]

• If the effect of a monster like "Malefic Blue-Eyes White Dragon" or "Malefic Red-Eyes B. Dragon" or "Malefic Stardust Dragon" is negated by an effect like "Skill Drain" or "Forbidden Chalice", then its effect "If there is no face-up Field Spell Card on the field, destroy this card." is also negated. Thus, "Malefic Blue-Eyes White Dragon" won't be destroyed if the Field Spell Card is removed from being face-up on the field.^[6]
• If "Skill Drain" is negating the effect "There can only be 1 face-up "Malefic" monster on the field." of a monster like "Malefic Blue-Eyes White Dragon" or "Malefic Red-Eyes B. Dragon" or "Malefic Stardust Dragon", then you still cannot Special Summon a second "Malefic Blue-Eyes White Dragon", since its effect is still active while it is in the hand.^[7]

• Suppose you control a face-up monster like "Malefic Blue-Eyes White Dragon" or "Malefic Red-Eyes B. Dragon" or "Malefic Stardust Dragon". If you control a Field Spell Card and activate a new one, then "Malefic Blue-Eyes White Dragon" is destroyed at the same time that the previous Field Spell Card is destroyed. However, if you control a Field Spell Card and your opponent activates a new one, then "Malefic Blue-Eyes White Dragon" is not destroyed since there is always a Field Spell Card on the field.^[8]

• Suppose you control a face-up monster like "Malefic Blue-Eyes White Dragon" or "Malefic Red-Eyes B. Dragon" or "Malefic Stardust Dragon" and another such monster which is face-down. If the face-down monster is flipped by an attack, then the flipped monster is destroyed after damage calculation by the effect of "Malefic Blue-Eyes White Dragon".^[9]

• Suppose you remove from play "Malefic Blue-Eyes White Dragon" with a card like "Interdimensional Matter Transporter", and then Summon another "Malefic Blue-Eyes White Dragon", all while "Skill Drain" is active. During the End Phase, even though the effect "There can only be 1 face-up "Malefic" monster on the field." of the "Malefic Blue-Eyes White Dragon" on the field is negated, that effect of the removed-from-play "Malefic Blue-Eyes White Dragon" is still active, so the removed-from-play "Malefic Blue-Eyes White Dragon" cannot return to the field. Thus, the removed-from-play "Malefic Blue-Eyes White Dragon" is sent to the Graveyard.^[10]

References

1. ↑ ^{1.0 1.1} Konami FAQ: Effect Monster > Malefic Stardust Dragon
2. ↑ Konami FAQ: Does "Judgment Dragon" destroy both "Malefic Stardust Dragon" and the Field Spell Card?
3. ↑ Konami FAQ: If your opponent activates a Field Spell Card while "Malefic Stardust Dragon" is on the field, then is your Field Spell Card destroyed?
4. ↑ Konami FAQ: Can "D.D.R. - Different Dimension Reincarnation" Special Summon a "Stardust Dragon" which was removed from play to Summon "Malefic Stardust Dragon"?
5. ↑ Konami FAQ: If the effect of "Malefic Blue-Eyes White Dragon" is negated, then can other monsters attack?
6. ↑ Konami FAQ: If the effect of "Malefic Blue-Eyes White Dragon" is negated, then is it destroyed by its own effect if there is no longer a Field Card?
7. ↑ Konami FAQ: Can you Special Summon a second "Malefic Blue-Eyes White Dragon" while the effect of "Skill Drain" is active?
8. ↑ Konami FAQ: Will "Malefic Blue-Eyes White Dragon" be destroyed if a second Field Spell is activated?
9. ↑ Konami FAQ: If a battling "Malefic Blue-Eyes White Dragon" is flipped by battle while there is no Field Spell active ^[sic], then when is it sent to the Graveyard?
10. ↑ Konami FAQ: Can a second "Malefic Blue-Eyes White Dragon" return to the field by the effect of "Interdimensional Matter Transporter"?