How do you beat Phoenix squad in arena?

One of the problems you guys are running into is Jedi Consular. JC is fine for a starter hero; we all used him, we all appreciated his healing ability. But there comes a point when you realize JC is just holding you back. He does not heal enough and he does little damage. Lumi is better because she is a better attacker, but eventually you need to drop her too. And you replace both of them with damage dealers.

There is a point where healing specialists have no place in Arena, and you instead just go for straight damage.

We can discuss zeta-Barriss later, but for now I think you may be better served to dump the healers and bring the pain.