Linde

Weapon: Dark Aura (+Eff) / Aura (+Eff)

Assist: Reposition 

Special: Moonbow / Luna 

Passive A: Fury / Fort. Def/Res

Passive B: Sabotage Atk / Chill Atk / Chill Spd / Flexible

Passive C: Joint Drive Spd / Spd Tactic / Flexible

Sacred Seal: Drive Atk / Drive Skills / Tactic Skills 

• One of the only units to boast access to two personal weapons, Linde possesses a notable amount of versatility and can perform admirably as a support unit, while still retaining some of her offensive potential. The decision between which tome to utilize should ultimately be determined by what the rest of her team composition consists of, but regardless a +ATK or +SPD IV are good choices though +RES can be considered if focusing more on her support. 
• Moonbow is a good Special choice for its low cooldown, though Luna can be considered for its greater firepower. For her A slot, Linde greatly appreciates the overall stat boost Fury provides for the enhancement to her offenses while rounding out her otherwise poor bulk. Should one wish to maximize her ability to use Sabotage skills, Fort. Def/Res may be taken though this comes at the cost of sacrificing her offensive potential.
• Linde’s B slot is quite flexible, but is best filled in by a Sabotage skill or a Chill skill to further support her team through debuff support on top of her passive buffs. The choice between which one depends on personal preferences as well as what skills and IVs are available, since Linde’s Resistance requires investment to fully leverage Sabotage skills.
• Her C slot and seal should ideally be occupied with some other form of buff that best compliments her team, such as Drives and Tactics. Joint Drive Spd and Joint Drive Atk are notable candidates for her C slot that, while notably high investment, pair incredibly well with her weapons’ unique refinement options.

Preferred IV: +ATK / -RES

Weapon: Blárblade+ 

Assist: Reposition 

Special: Glimmer / Miracle

Passive A: Close Foil / Close Counter

Passive B: Vantage

Passive C: Pulse Smoke / Res Smoke / Flexible

Sacred Seal: Fierce Stance / Brazen Atk/Spd

• Although this build once again sees use of the Blárblade tome, it takes a vastly different approach to Linde’s intended playstyle by focusing on her Enemy Phase performance through a standard OHKO Vantage setup. A +ATK IV is preferred here to maximize her consistency at landing one shots. 
• Pairing Vantage + a skill that enables counterattacks regardless of range is pivotal to cleanly sweep through all enemy types in the Enemy Phase upon losing enough HP.  Close Foil is preferred if using Linde in Aether Raids Offense given how uncommon dragonstone users are on defense teams, but Close Counter can still be used should one wish to be safe.  
• For her Special,  aside from low cooldown options like Glimmer and Moonbow for their frequent activation rate, Miracle can be equipped to provide some Linde much-needed survivability since even with Vantage, taking damage isn’t always avoidable -- and with her abysmal bulk, this can be quite useful. 
• Pulse Smoke is recommended for Aether Raids to shut down Infantry Pulse setups, otherwise Res Smoke is better to increase Linde’s damage. Most Attack-increasing seals will work perfectly fine here, such as Fierce Stance and Brazen Atk/Spd.

Weapon: Blárblade+ 

Assist: Reposition 

Special: Glimmer / Draconic Aura 

Passive A: Swift Sparrow / Atk/Spd Solo / Fury / Atk/Spd Push 4

Passive B: Desperation

Passive C: Res Smoke / Odd Atk Wave / Flexible

Sacred Seal: Swift Sparrow / Death Blow / Darting Blow / Heavy Blade

• This build ditches any pretense of maintaining Linde’s supportive ability in exchange for massively higher damage potential through the use of the Blárblade tome; however, do keep in mind that although this build does have the potential to have a high offensive ceiling, Linde will be reliant on buffs to function. An Asset to either her Attack or Speed stat is again recommended to build upon her already strong offenses. 
• Glimmer makes for a fantastic Special on most Blade tome users with Linde being no exception, boasting a low cooldown and scaling extremely well with the additional damage from Blárblade’s effect. Linde can also make potent use of Draconic Aura in tandem with the Heavy Blade Seal, effectively bypassing the Special’s otherwise long cooldown, for more consistent and powerful Special activations.
• For her A slot, any standard offensive options -- with the most standout being Swift Sparrow, Atk/Spd Solo, Fury, and Atk/Spd Push 4 -- will work perfectly fine. The same applies for her choice of seal. Desperation, however, is a non-negotiable aspect of this build as Linde’s abysmal bulk renders the skill necessary for her to consistently engage in combat. 
• Linde isn’t attached to any specific C slot to function, so feel free to use any available option here. That being said, Smoke skills (mainly Res Smoke and Spd Smoke for the purposes of this build) work great with refresher support, though Odd Atk Wave and other similar skills are also decent to make Linde more self-sufficient.