|Grimoire - Grimoire lets her warp to a space adjacent to any ally with 2 squares while shes sitting above 50% HP.
Reposition and Moonbow -
Reposition and Moonbow are generic staples. These can be swapped for anything to fit your needs.
Atk/Res Bond -
Due to the nature of Grimoire and Escape Route, sticking with Atk/Res Bond in the a slot makes sense.
Escape Route -
Escape Route compliments Grimoire's effect nicely, and lets her warp to a space adjacent to any ally should she fall below that 50% threshold.
Drive Atk -
Since this build is best utilized outside of Flier Emblem, a generic Spur or Drive buff is ideal.
With Grimoire and Escape Route bolstering her own mobility, in addition to being a flier, equipping the Guidance Sacred Seal turns her into a powerful mobility tool for any Armor or Infantry team.