Zeta order for cls arena team

1. IBAT -- main TM gain for your team
2. Number Crunch -- great boost to survivability, damage, and potency
3. Shoots First -- takes Han from being good to being fantastic, with better damage than CLS
4. Loyal Friend -- gives Han, Chewie, and the other guarded ally much needed recovery
5. Combat Analysis -- the self cleansing is still invaluable
6. Raging Wookie -- all but guarantees Chewie can dispel or stun
7. CLS Lead -- if you're serious about using them in arena long term you gotta get the extra TM
8. CLS LC -- not bad at all but only gives you benefit about half the time

Also, I'd probably recommend zOB over GK because Devoted Protector is really nice, as is Mind Tricks. Once you zeta CLS lead, that and Improvise both grant you enormous TM.

IBAT
Loyal Friend
Han
Number Crunch
Combat Analysis
Raging Wookie
Your choice

IMHO

IBAT and Number Crunch.