Ep team zeta order?

Sion, DN/Thrawn, then Vader

all uniques

that's my two cents. Sion's makes him a lot better and makes it easier to get to Held By Hatred. Vader's already plenty tough enough, and you've got plenty of debuffs around so you don't really need DN, but you've also only got two other Empire chars to proc Thrawn's unique, which means it's pretty much for tenacity and counter chance, which isn't really zeta worthy. If Traya looks to be within reach for your guild I'd save a zeta for her.

tbh I'd get Sion then hold to see if a zeta in another area would be more significant unless you really think those small boosts would be significant.

Sion and Thrawn uniques should come first. They are the ones that hold the team together. Nihilus has an ok zeta, but not a great one, so he should be a lower priority than those two. Vader's definitely last.

Unique Zeta order: Sion, nihilus, and the bottom 2 are Thrawn/Vader uniques.

Sion's unique is a necessity. Period.

Nihilus you could argue is even more important depending on your shard. It completely messes up jtr squad cleanses. And it adds another debuff on *their* turn. Plus it's health down.

Thrawn/Vader are luxury zetas. Thrawn is nice that it keeps the fracture going longer and the extra counter chance. But again it is a luxury... Not a necessity. Same for Vader.