If you are running a tuner deck and you have Stardust Dragon and Red Dragon Archfiend in your Extra Deck work your way into bringing these two bad boys out because they compliment each other a lot. Now if Stardust and Red Dragon are out on the field and your opponent has walled you in with a Gravity Bind or a Level-Limit Area B (of which stops you from attacking) or if they have some sort of monster wall you can negate Red Dragon’s effect that destroys monsters that did not declare an attack by tributing Stardust and destroying Red Dragon.
Now you can if you wanted to, special summon Red Dragon from the Graveyard with the trap card Descending Lost Star and play Ultimate Offering to additionally summon clock resonator when you summoned Barrier Resonator to synchro summon Red Nova Dragon.