Cannot be used as a Synchro Material, except for the Synchro Summon of a "Majestic" monster.
You can Tribute Summon (but not Set) this card with 1 Tribute. If Summoned this way, during the End Phase: Send it to the Graveyard. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent.
You can Normal Summon this card without Tributing. If you do, during the End Phase: Send it to the Graveyard.
When this card inflicts Battle Damage to your opponent by a direct attack: Draw 1 card. During the End Phase of the turn this card was Summoned: Send it to the Graveyard.
"Majestic Dragon" + "Red Dragon Archfiend" + 1 non-Tuner monster
Cannot be destroyed by card effects. After damage calculation, if this card attacks: Destroy all Defense Position monsters on the field. Once per turn: You can target 1 face-up monster your opponent controls; negate its effects, and if you do, this card gains ATK equal to that monster's ATK. These changes last until the end of this turn. During the End Phase: Target 1 "Red Dragon Archfiend" in your Graveyard; return this card from the field to the Extra Deck, then Special Summon that target.
"Majestic Dragon" + "Stardust Dragon" + 1 non-Tuner monster
During either player's turn, when your opponent activates a card or effect: You can Tribute this card; negate the activation, and if you do, destroy all cards your opponent controls. Once per turn: You can target 1 face-up monster your opponent controls; negate its effects until the end of this turn, and you can activate 1 of its effects as this card's effect once this turn. During the End Phase: Target 1 "Stardust Dragon" in your Graveyard; return this card from the field to the Extra Deck, then Special Summon that target.
"Majestic Dragon" + 1+ non-Tuner monsters, including a Dragon Synchro Monster
Must first be Synchro Summoned. Once per turn: You can negate the effects of 1 Effect Monster your opponent controls. This card gains 1 additional attack each Battle Phase for every monster in your GY that is "Stardust Dragon" or is a Synchro Monster with "Stardust Dragon" in its text. Once per turn, when your opponent activates a card or effect (Quick Effect): You can banish this card (until the End Phase), and if you do, negate the activation, and if you do that, banish that card.