Blue cheated in game 3, as Vayu cannot be used as synchro material while face up on the field. So opponent shouldn't of been able to summon Stardust Dragon.
Shura the blue flame's effect: When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can Special Summon 1 "Blackwing" monster with 1500 or less ATK from your Deck, but its effects are negated
Blue cheated in game 3, as Vayu cannot be used as synchro material while face up on the field. So opponent shouldn't of been able to summon Stardust Dragon.
He can
Vayu was summoned via Shura, which negates vayu's effect on the field
Shura the blue flame's effect:
When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can Special Summon 1 "Blackwing" monster with 1500 or less ATK from your Deck, but its effects are negated