Magnificent Maestros

2 Tuners + 1 non-Tuner
Must be either Synchro Summoned, or Special Summoned (from your Extra Deck) by banishing 2 Tuners and 1 "Red Dragon Archfiend" from your GY. Cannot be destroyed by card effects. If this card is Special Summoned: You can add 1 card from your GY to your hand, and if you do, this card gains 2000 ATK. You can only use this effect of "Red Nova Dragon - Burning Soul" once per Duel, and only if you have Synchro Summoned "Red Dragon Archfiend".

Red Nova Dragon - Burning Soul

Blazing Dominion

4 Tuners + 1+ non-Tuner Synchro Monsters
Must first be Synchro Summoned with the above materials. Gains 500 ATK for each Tuner in your GY. Your opponent cannot target this card with card effects, also it cannot be destroyed by your opponent's card effects. Once per turn (Quick Effect): You can banish this card, also banish as many cards in your opponent's field and GY as possible, then you can Special Summon 1 "Red Nova Dragon" from your Extra Deck (this is treated as a Synchro Summon).

Red Hypernova Dragon

Duelist Nexus

1 Tuner Synchro Monster + 2+ non-Tuner Synchro Monsters
Must first be Synchro Summoned with the above materials. Once per turn: You can target face-up cards on the field, up to the number of monsters used as Synchro Material for this card +1; negate their effects. This effect's activation and effect cannot be negated. (Quick Effect): You can banish this Synchro Summoned card; Special Summon 1 Dragon Synchro Monster from your Extra Deck that requires 2+ non-Tuner Synchro Monsters as material. (This is treated as a Synchro Summon.)