Mesprit Help

[Toad Kart 64]

Ok, so after I went into that one lake's cavern, and it left, then Rowan talked to me about it, blah, blah blah, this morning I was randomly searching for wild pokemon in the grass when it came!

We were in a battle, I tried to attack it, but before I even could it fled! So now what, is it in a completley different area now?

 

[Draco Roar]

Yes. In Diamond I believe if you viewed your map it would show where it was

 

[Silverstorms]

There are a million and one guides on this.

http://lmgtfy.com/?q=mesprit+guide

 

[Trent the Paladin]

Marking Map app on your Poketech.
Have a Pokemon like Dugtrio to prevent it from fleeing.
Have a Pokemon that knows Mean Look.

 

[Silverstorms]

Have a Pokemon like Dugtrio to prevent it from fleeing.

I pretty sure Dugtrio's ability doesn't work on Levitate pokemon.