Because Pendulum Monsters on the field go to your Extra Deck if they would be sent to the Graveyard and can be Pendulum Summoned back later, in the long run, each Synchro Summon you make only costs you the Tuner you use for it, since there are no natural Pendulum Tuner Monsters
With 4,000 attack and defense points, this effect makes this Fusion Monster difficult to remove from the field
Its also a Level 5 Synchro Monster, so if you can revive your Accel Synchron or just Summon a second one, youll be able to get Stardust Warrior back on the field in no time at all
Duel Monsters , Duel Monsters II: Dark Duel Stories , Monster Capsule , Duel Monsters 4: Battle of Great Duelists , and Duel Monsters 6: Expert 2
It's also a Level 1 DARK Spellcaster, which is useful for many Extra Deck summons before it's destroyed by Instant Fusion