Is this "team" meant to be for tournament play or for friendly battles?
Bes4360: Dark Pulse and Shadow Ball have almost the exact same type coverage (Shadow ball will hit Fighting, Dark Pulse will hit Normal, besides that they are identical).
As for Lucario, try this:
Physical Sweeper - Lucario @ Life Orb.
Adamant/ Jolly nature.
Max IVs in Speed, Attack and HP.
252 Speed, 252 Attack, 6 HP EVs.
Extreme Speed.
Swords Dance.
Crunch.
Close Combat.
If you don't know what the above means then take a look at these:
Link,
Link and
Link there may be an IV guide in the future.