Then you can't.
You can only get it by Action replay,Mystery gift or Wi-fi conettion
i think you might need to have a action replay
No, you need Action Replay
you can use action replay
One of the best ways to get Darkrai without using an Action Replay is by trading with a friend who has it. If they don't, wait for an official Pokemon event for Darkrai. The next one will be in May 1st for X, Y, Omega Ruby, and Alpha Sapphire.
you must have action replay to catch darkrai, it doesn't goes without.
um never without action replay
Sorry, you can't.
You cant you have to buy action replay
Use action replay.
get a darkrai from your friend[note if they want to trade)
You can't.