- 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: Sylvie (UC) unavailable.
- Raising personal evaluation up to five points during the Unity ranking tabulation period will make it possible to call forth Trust: Sylvie (UC) again.
- Unity leader Alter Egos receive bonuses to all stats based on the Unity ranking held at the time of summoning.
- Does not melee and will follow the player when not casting.
- Casts Indi- spells and uses Entrust.
- Currently does not summon Luopans, likely due to technical limitations.
- Spells cast depends on player job as well as the relative accuracy/evasion stats between player and monster. If the player changes weapons that shift the accuracy, she will cast a new spell to compensate.
- If the player already has the Entrust spell effect from someone else (either a prior summon of her or another player), she will wait until it expires.
- Spells with level 99 effects are as follows:
- Indi-Fury (+37.3%) or Indi-Precision (+56), Entrust Indi-Frailty (): WAR, MNK, THF, DRK, BST, RNG, SAM, DRG, BLU, COR, PUP, DNC
- Indi-Haste (+28.8%), Entrust Indi-Refresh (+5): PLD, RUN
- Indi-Haste (+28.8%), Entrust Indi-Regen (+30): NIN
- Indi-Refresh (+5), Entrust Indi-Acumen (+41): WHM, BRD, SMN
- Indi-Acumen (+41) or Indi-Focus (), Entrust Indi-Refresh (+5): BLM, RDM, SCH
- Indi-Refresh (+5) without Entrust: GEO
- Casts Cure spells up to IV, -na spells, Haste.
- Does not cast offensive magic. She sometimes talks about not being good at it in Unity chat.
- Has a latent Regain effect and uses Nott.
- Summon: Hi! ...I'm Sylvie......the geomonger--I mean, geomancer!
- Summon (while ranking is high): Wow, great going with all those Unity acolytes! You're our real......"'a' in the hole!" ...Is that how you say that?
- Summon (while wearing Sylvie Unity Shirt): What a splendiferous getup you have there! I don't think Wescolina herself could've done any better!
- Dismiss: Gotta go! You, you go get 'em, champs! Give them hell or high water!
- Death: I wanna...I wanna go home!
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