Ursula

Weapon: Blue-Crow Tome (+Eff)

Assist: Reposition / Flexible

Special: Glimmer 

Passive A: Death Blow (3 or 4) 

Passive B: Lull Atk/Res 

Passive C: Ward Cavalry / Goad Cavalry

Sacred Seal: Hardy Bearing / Death Blow 

• Aether Raids defense offers a myriad of structures that can debuff, such as the Panic Manor, Dark Shrine, and Bright Shrine. The combination of these structures, Chill and Panic skills from allies, and Blue-Crow Tome can make Ursula a fearsome annoyance on Aether Raids defense maps.
• Blue-Crow Tome grants Ursula a bonus to Attack equal to the total of the enemy’s debuffs. While this may not seem impressive on Aether Raids defense as it can be difficult to control which enemy gets which debuff(s), the prevalence of teams centered around a supertank (unit with high stats all-around) can circumvent this. Most, if not all Chill skills will often inflict debuffs on said supertank, allowing Ursula to gain a hefty bonus in Attack.
• Ursula’s primary focus is dealing a massive amount of damage in one attack, as she cannot consistently perform a follow-up attack against most supertanks even with Speed buffs. Death Blow is her strongest A slot, as it grants additional Attack when she initiates. Lull Atk/Res in her B slot allows her to neutralize the enemy’s Attack and Resistance buffs while inflicting them with -3 Atk/Res, increasing Ursula’s survivability and damage output.
• While Death Blow is a strong option for Ursula’s Sacred Seal, she may want Hardy Bearing if her allies are not using it. Hardy Bearing is a necessity for all Aether Raids defenses, as it prevents skills that change attack priority from activating. This means that it is much more difficult for Vantage sweepers such as Legendary Leif and Broadleaf Fan users to sweep entire defenses.
• Ursula’s strongest team composition is the Cavalry-line, a horizontal line of 6 cavaliers that focuses on space oppression and control. As such, Ward and Goad Cavalry are strong options for any offensive teams that attempt to initiate against the Cavalry-line.

Weapon: Blue-Crow Tome (+Eff) 

Assist: Reposition 

Special: Glimmer 

Passive A: Close Foil / Close Counter 

Passive B: Vantage 

Passive C: Pulse Smoke / Res Smoke

Sacred Seal: Fierce Stance / Brazen Atk/Spd 

• Blue-Crow Tome allows Ursula to become an effective Vantage sweeper in Aether Raids offense. With this weapon, Ursula gains a bonus to Attack during combat equal to the total amount of debuffs inflicted on the enemy. However, Ursula will need support from units such as Aversa, Iago, Temari wielders, and Sabotage users to apply these debuffs, as she cannot reliably debuff on her own and needs her passive slots. 
• Close Foil/Counter is vital for this set, as it allows Ursula to counterattack against melee enemies (Close Foil grants Ursula +5 Atk/Def but prevents her from counterattacking against Dragons; however, Dragons are very uncommon on Aether Raids defense, so this isn't much of an issue). In combination with Vantage, Ursula can get the opportunity to OHKO both melee and ranged units before they can attack, which is important because Ursula’s bulk is too poor to take multiple hits.
• Fierce Stance is Ursula’s most consistent Attack-increasing Sacred Seal, granting +6 Attack on Enemy Phase. However, Brazen Atk/Spd is another great option, granting +7 Atk/Spd regardless of phase if Ursula’s HP is ≤ 80%; given that Vantage already requires Ursula’s HP to be ≤ 75%, it should be relatively easy to activate. Glimmer is Ursula’s strongest Special that takes advantage of Ursula’s potentially massive attack, as its bonus damage scales based on Blue-Crow Tome’s bonus Attack. 
• For Ursula’s C slot, she can opt to use Pulse Smoke to prevent enemies from OHKOing her with strong Specials before she reaches Vantage range. However, Res Smoke is a strong alternative if she doesn’t have a support partner that inflicts a Resistance debuff to foes.
• One thing to note with Blue-Crow Tome is its Cavalry-effectiveness. While this may seem borderline trivial in PvE, Eliwood and Brave Roy are popular frontliners thanks to Blazing Durandal. Space control maps with Cavalry units and Cavalry-line maps are also prevalent, which makes Blue-Crow Tome’s Cavalry-effectiveness valuable.

Weapon: Silver Goblet+ (+RES or +SPD)

Assist: Reposition / Rally Atk/Spd+ 

Special: Moonbow 

Passive A: Fury (3 or 4) / Fort. Def/Res 3 

Passive B: Chill Atk / Atk/Spd Ruse / Chill Atk/Res / Atk/Spd Link

Passive C: Distant Guard / Close Guard 

Sacred Seal: Distant Guard / Drive Res

• Because Ursula can be easily merged (thanks to her GHB and Heroic Grails), she can be utilized as a high-merge, high-budget support unit.
• The combination of Silver Goblet and 2 Distant Guards allows Ursula to grant +12 Def/Res to allies when they defend against ranged enemies. Alternatively, Ursula could run a combination of Close and Distant Guard effects to ensure she grants defensive buffs regardless of the enemy’s range, even if it’s not as drastic. 
• As a support unit, Ursula values survivability over all else. As such, Fury and Fort. Def/Res 3 are fantastic options, both of which increasing her defensive stats in case she needs to take an enemy attack.
• Ursula’s B slot can depend on her Assist skill. If using a movement Assist such as Reposition, her B slot can be a Link skill, which increases both Ursula’s and her ally’s stats by +6 to 2 stats whenever she uses the movement Assist skill on/with them. If using a Rally, she can use a Ruse skill, inflicting -5 to 2 stats and the Guard status on all enemies within cardinal directions of Ursula and the unit she rallied (or the unit that rallied Ursula and herself). However, regardless of her Assist, Chill skills are fantastic options, as they don’t require Ursula to use a specific Assist.

Weapon: Blárblade+ 

Assist: Reposition / Flexible 

Special: Glimmer 

Passive A: Swift Sparrow (2 or 3) / Atk/Spd Push 4 / Fury (3 or 4)

Passive B: Desperation / Lull Atk/Res 

Passive C: Res Smoke / Hone Cavalry / Flexible 

Sacred Seal: Swift Sparrow / Darting Blow

• Ursula’s middling 29 Attack can be patched by a Blade tome, which grants Ursula bonus damage equal to the total of her visible buffs. As with most Blade tome sets, Glimmer is chosen as Ursula’s Special because it scales based on bonus damage granted from the tome. However, note that Ursula becomes reliant on team support for visible buffs.
• As an offensive unit, Ursula wants skills that increase her Attack and Speed as much as possible so she can deal high amounts of damage and consistently perform follow-up attacks. Swift Sparrow, Atk/Spd Push 4, and Fury are all excellent choices, with the former’s condition being that she initiates and the latter 2 having recoil damage after combat. Note that Atk/Spd Push 4 only activates if Ursula’s HP is ≥ 25% and the recoil damage can help Ursula reach Desperation range.
• Because Ursula struggles to OHKO even with a Blade tome and her bulk is unreliable, she greatly appreciates Desperation. This skill allows Ursula to perform her follow-up attack before the enemy can counterattack if her HP is ≤ 75%, helping her overcome her low bulk and inability to OHKO. Alternatively, Ursula could neutralize the enemy’s Attack and Resistance buffs and inflict -3 Atk/Res during combat with Lull Atk/Res, improving Ursula’s survivability and damage output.
• Ursula’s C slot is flexible, although Res Smoke is a great choice to increase the damage output of both herself and her magical allies. Hone Cavalry is a nice alternative if using Ursula with other Cavalry allies, granting them +6 Atk/Spd when hey are adjacent to Ursula to start the turn.