My personal [Titania] build. Uses an umbral forma and five normal forma. Exilus polarity doesn't match because of an eidolon build I use on her aswell. Made as a tank [Titania] build with enough strength to tackle level 100 or over enemies and doesn't [Sacrifice] any stats to do well. Mods are:
[Aerodynamic], [Aviator] and [Adaptation] for the tank part of the build, used to give [Titania] over 64% damage reduction.
[Primed Flow] for a larger energy pool for use to constantly stay in razorwing.
[Streamline] and Fleeting Expertise are mandatory to keep razorwing's energy usage at a minimum.
Augur Secrets for that extra bit of end-game damage, so killing enemies at higher levels wont be as straining. I wanted to put [Agility Drift] on this slot, but decided against it since the survivability gain from all the other mods is enough already to keep [Titania] alive and [Agility Drift] doesn't give as much as [Aerodynamic] and [Aviator] do.
[Primed Continuity] to counteract [Fleeting Expertise]'s duration reduction
[Umbral Intensify] and [Umbral Vitality] to add more damage to her [Dex Pixia] so she can tackle enemies higher than level 100 if required, as well as a larger health pool so theres more time to react to when you take a lot of damage as the game doesn't show if you are on low health very well.
Arcanes are Arcane Velocity and Arcane Energize. Velocity replaces [Razorwing Blitz]'s fire rate increase and makes you shoot two pistol machine guns. Arcane Energize keeps your energy topped up no matter which focus school you're running and keeps you from wasting resources on energy pads