Sleeping question.

[atomant]

If I play Darkrai (Majestic Dawn) and Put my opponent to sleep then use Darkrai LVX attack Endless Darkness how many coins must my opponent flip to become awake?

I think it would just be two, but my friend says three because of the Poke power then my affect of an attack.

 

[PokePop]

Special Conditions don't stack. A new Asleep replaced the old Asleep.

So, in this case, the Power of the Darkrai makes the Active Asleep.
Then, when you attack, that Asleep condtion (along with it's double flip) replaces the original one.

So your opponent would flip twice.