1 Tuner + 1 or more non-Tuner monsters
During either player's turn, when a card or effect is activated that would destroy a card(s) on the field: You can Tribute this card; negate the activation, and if you do, destroy it. During the End Phase, if this effect was activated this turn (and was not negated): You can Special Summon this card from your Graveyard.
Temporarily removing Stardust Dragon from the field and then reviving him during the End Phase removes all bad effects currently attached to him. Negative equip cards like Mask of the Accursed and debuffs from cards like Wall of Disruption will be disregarded when Stardust Dragon returns to the field.
Stardust Shimmer can revive any Dragon-type Synchro monster by banishing monsters from the graveyard to match the revived monster's level. Stardust Flash is similar to Red-Eyes Spirit but for Stardust Dragon. Use these cards to revive Stardust Dragon in your graveyard.
Stardust Re-Spark can be used to save you when you are about to lose by direct attack from your opponent's special summoned monster. Special summon Stardust Dragon from your extra deck to block the attack or completely stop the opponent's attack because their monster is weaker than Stardust Dragon.
Shooting Star can be used as one for one removal to destroy any card on your opponent's field so long as you control a Stardust monster.
Here are some upgraded versions of Stardust Dragon which require him and a specific support card to summon a more powerful version of himself. There are also skills that support the summoning of these upgraded forms that work with decks specifically made to bring them out.
Shuffle 1 "/Assault Mode" card from your hand into the Deck. Add 1 "Assault Mode Activate" from your deck to your hand, This skill can be used once per turn.
Shuffle 1 Tuner monster from your hand into your deck to summon Majestic Dragon from your deck. This skill can be used once per turn.