(Gen 4) making a pearl team

[sunmanbc]

i have an adamant gible with outrage, a modest piplup with substitute, agility, surf, and icebeam, jolly machamp with ice punch, bullet punch and dynamic punch, a lonely lavitar with stone edge, and earthquake and a quirky heatran.
im not sure who to add to this team i was thinking azelf or zapidos but i would like any ideas or improvements i can make