It's not just the empryean armour, there's a mass of upgraded gear via Synergy that can be obtained, for example:
H.Head - Pet:MAB (which is the 100% augment)
H.Hands - Pet:MAB
H.Legs - Pet:Atk, Crit Rate
A.Feet - Pet:MAB
Kirin's Pole - Summoning skill

Relic +2 also has great stats, there are so many other options to Empryean Armor nowerdays