Maul, palp, nihilis, Vader & Kylo/baze.
It is absolutely disgusting in arena. My full power zeta Finn resistance team doesn't get a turn.
On the other hand, zeta Finn resistance is unique and sometimes the RNG rolls your way and you can win literally any fight against any team, but it happens rarely.
Also, you will lose on defense... I've gone from top 10 to outside the top 100 overnight. The AI doesn't realise attacking the exposed enemies is a good idea.
My other zeta is on Kylo Ren. He can 1v5 chaze/wiggs teams (no exaggeration either....) And does some amazing clutch things at times.
Zeta Finn resistance is good for anywhere from 1million - 3/4 million P2 HAAT and as we know zeta kylo can solo P1 HAAT if you have the time.
The end.