Is dis a good combo for my Darkrai?

Dark Void (1st turn)

Dream Eater or Nightmare (2nd Turn)

Yes, but Attaking with Dark Pulse is also good.

Supposingly, but it's the exact similiar combo to Hypnosis/Sleep Powder/Etc.+Dream Eater or Nightmare. Just with Dark Void instead

Seeing that Dream Eater and Nightmare require the other pokémon to be asleep, you don't really have other options (unless you're in some double battle).

I'd go with:

Dark Void
Calm Mind
Dark Pulse
Thunderbolt/Ice Beam

The problem with nightmare and dream eater are that you NEED the opponent to be asleep for it. Although dream eater is often tempting, even for me, a good Dark Pulse usually does just as well.

Honestly, I only use Dark Void when a pokemon poses an immediate threat, and I have doubts in my ability to OHKO it.

I thought Psychic might be a good addition to take care of Fighting types.

Psychic is also an option (I'm not actually sure if it learns it, though).

It does, my Darkrai has it. With such high Sp. Atk and Speed, Darkrai strikes hard and fast.

Too Common and not worth it.

Dark Void has 80% which is good but a give it a wide lens, so it gets 100% acc and ontop of that Dream Eater isnt too good unless you have a Special Attack boost. As for Nightmare, your already doing damage for the opponent being asleep, so thats a waste. In Doubles Darkrai with A Hypno sounds sexy. Since Hypno has Insomnia it cant fall asleep and Dark void is an all strike sleep move iirc.

u no i should teach it 2 psy moves and 2 dark moves

dat might work kinda

i think that you should go with

@ Wide Lense
Can't do a lot with EVs here but try to max spc atk and spd

Darkvoid
Dream Eater( is psychic so it will kill fighting)
Shadow Ball
Psychic/Spc Attk.(your choice)

That would give you first strike and an acurate hypnosis. The attk power means i hti K.O. and if not your ability will play cleanup. in case they have Insomnia you need to have probably a good Spc Atk and Phys Atk but shadow ball gets STAB i believe making it really strong .

but where do u get wide lens?

1000 coins at the game prize center in veilstone

thy ill try that and maybe i might go broke >.>

its still worth a try

if you need 1 id be happy to give you one if you have wifi, it is hacked though but it will have no side efects on your game. or i can get you a real one on my diamond for a cost haha.

no thx ill pass