I want a really cool BT team...so far i have...........

[Ace Trainer Nathaniel]

k I have

Lucario:
Lv:50 (BT requirements)
Holding:I need to know what to give him according to his moves....
Moves-
Aura Sphere
Psychic
Close Combat
Dark Pulse

now i need two more pokemon.......

[Coontank!]

What's the nature on that Lucario?