- Must have a personal evaluation of five points or greater during the Unity ranking tabulation period. 
- Changing Unities, or having a personal evaluation lower than five points for two consecutive ranking tabulation periods will make Trust: Invincible Shield (UC) unavailable.
- Raising personal evaluation up to five points during the Unity ranking tabulation period will make it possible to call forth Trust: Invincible Shield (UC) again.
- Unity leader Alter Egos receive bonuses to all stats based on the Unity ranking held at the time of summoning.
- Uses weapon skills: Raging Rush, Steel Cyclone, Soturi's Fury.
- Uses job abilities: Provoke, Restraint, Retaliation, Warcry, Blood Rage.
- Uses Tomahawk on monsters when it will allow for more damage (e.g. Skeletons).
- Summon: Stand strong behind me, for my defenses reign supreme!
- Summon (while ranking is high): I don't care how strong you thought you were before joining my Unity. Stay loyal, and I'll whip you into a frenzied killing machine!
- Summon (while wearing Invincible Shield Unity Shirt): One of my maggots having a good time, I suppose?
- Dismiss: Never forget your basic training, maggots!
- Death: Don't think you've won yet...!