This page shows the most popular Zetas that you do not yet have in your collection! It is sorted by % of applied zetas to units at a G12+ level. Note that the zeta "Galactic Legend" is omitted as multiple units share it.
Your Zetas 199 - Missing Zetas 1
At the start of the encounter, if the allied Leader is Empire, Royal Guard gains Max Health equal to 5% of the allied Leader's Max Health and then doubles his Health until the end of the encounter