you can ether use a ds action replay or you can keep on battling yusei :)
instead i used a ds action replay because its faster and gives you 3 copies
EDIT: Stardust Dragon can also be obtained in "The Duelist Genesis" booster pack.
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Not within the game.
you would have to download a hack from the internet
Rainbow dragon is found in the card pack "Tactical Evolution."
Armed Dragon LV7 appears as a Super Rare card in the "Soul of the Duelist" booster pack in "Yu-Gi-Oh! 5D's World Championship 2010: Reverse of Arcadia".
Summon it in a duel
Yusei and Crow
Stardust dragon is not available in yugioh gx tag force 3 as it is a gx version. Only a 5ds version such as yugioh 5ds tag force 4 would have stardust. So, try getting yugioh 5ds tag force 4.
it allready did
you get it in the stardust overdrive pack.
well that's a vague question cause in yugioh 5ds, stardust dragon is yusei fudo's favorite/best card. Since stardust dragon is an excellent card, you can put it in just about any deck with synchro summoning.
Around the end of February.