As mentioned, you cannot trade the Azure Flute.
I believe that pokedict is referring to the Tweaking Glitch, which is discussed in
this thread.
If you happen to successfully replicate this glitch (do note that it may mess up your game), you could not trade the glitched Arceus here. Feel free to keep it, though.
The only Arceus you may trade is the level 100 event Arceus (such as the Toys R Us or Eigakan Arceus). You can ask for any of these event Pokemon in the
Quick Trade Thread here.
So, this basically does not need its own thread. ^^
Closed~