Daka's 'Serve Again' Zeta & Talzin's 'Great Mother' Zeta

@SamuraiUX the Zeta on mother talzin’s leader ability makes them close to invincible

Let's say I have three Zetas to use (I've been really saving, more out of indecisiveness than anything else). So I drop one on Mother Talzin for sure. Which other NS are worth the Zetas? I'd guess Ventress and Daka? Or - and be honest with me here, considering how tough Zetas are to obtain - maybe Mother Talzin's enough, and spend the other two on other teams? (I can still Zeta First Order and Phoenix, too...)