Arena Squad (Overall roster advice) - HELP (Level 73 F2P)

Not entire sure about the update. Some if it has been harder (yesterday's challenge against Veers/Tarkin) some the same or easier (Arena last night). GW will take a different strategy. I upgraded Dooku (star & abilities), Ventress (abilities), Poe (abilities/level - my light side characters are way behind my dark side), Royal Guard (level/abilities), Qui-Gon (Star), Ahsoka (star), Magmatrooper (Star) - Spent about 80 purple mats and ~2M credits.