Scáthach

Weapon: Spirited Sword+ (+Def)

Assist: Positional Assist

Special: Ignis / Astra

A Passive: Atk/Def Ideal (3 or 4) / Atk/Def Solo (3 or 4) / Atk/Def Unity

B Passive: Special Spiral

C Passive: Odd Def Wave / Rouse Atk/Def (3 or 4)

Sacred Seal: Even Def Wave / Atk/Def Solo / Atk/Def Form

• The idea with this set is to be as budget as possible. The only non-budget skill will come from his B Passive, in the form of Special Spiral, since it’s necessary for the build to work consistently. The idea is to trigger a four-cooldown Special once so that it reverts to two cooldown, followed by Spirited Sword+ providing accelerated cooldown in the Enemy Phase so that he can spam his Special on retaliation. Beyond that though, he can keep what he comes with and simply stack his Atk and Def.
   
• Since Scáthach has a really high Atk and Def stat, he can either keep his innate Astra or run Ignis. Both provide a healthy amount of damage, but for consistency, Ignis will be better, and in many cases, Astra will either be overkill or not deal enough damage against more bulky foes.
   
• Any skill that boosts his Atk and Def will be ideal since it’ll make Scáthach hit harder and allow him to take hits from foes that target his Def whenever needed. His innate Atk/Def Ideal works perfectly but if you want skills that have a higher ceiling, he can instead run Atk/Def Solo or Atk/Def Unity.
   
• Special Spiral, while not budget, is the only worthwhile skill for this set since it’ll allow him to chain Ignis or Astra Specials each combat, provided that he already triggered it once. He can also get it going immediately with external support from Infantry Pulse or units such as Velouria and Rafiel.
   
• Odd Def Wave isn’t the worst skill for budget purposes since it can pair with the Even Def Wave Sacred Seal so that he always has a visible buff active for Spirited Sword+ to take advantage of. That being said, he can snag Rouse Atk/Def 3 from a Bertram in the Grail Shop, so if you would rather run that, it’s definitely an option. On the more premium side, there’s Rouse Atk/Def 4 which allows him to keep visible buffs and secure Spirited Sword+ from deactivating from Panic skills.
   
• For budget purposes, he can simply run Even Def Wave as his Sacred Seal so that Spirited Sword+ is always active. However, if he’s running Rouse Atk/Def instead, he can simply run skills that increase his overall Atk and Def, whether that’s with Atk/Def Solo or Atk/Def Form.

Weapon: Ninja Katana+ / Brave Sword+

Assist: Positional Assist

Special: Galeforce / Moonbow

A Passive: Heavy/Flashing Blade 4 / Death Blow (3 or 4)

B Passive: Frenzy / Lull Atk/Def / Wings of Mercy / Desperation

C Passive: Time’s Pulse / Def Smoke / Savage Blow

Sacred Seal: Blade Session / Heavy/Flashing Blade / Savage Blow

• Scáthach having a massive Atk stat means he can afford to run Brave weapons since the MT penalty won’t affect him nearly as much as other units. His workable Spd can also open up the potential for quads if you run Ninja Katana+. Otherwise, it may be best just to stick with Brave Sword+ since it doesn’t cut down on any of his bulk and it’s only a singular MT difference.
   
• Depending on what you want to accomplish with Scáthach, he can either go for a Galeforce set or increase his overall damage output with Moonbow as a short-burst approach. There are benefits to each. Galeforce can allow Scáthach to deal more overall damage to multiple foes while Moonbow can secure more ORKOs. Either approach is viable, so it’ll mainly boil down to preference.
   
• Heavy/Flashing Blade will be essential in his kit if he is to trigger Galeforce, or Moonbow if not running Time’s Pulse, since he won’t be able to charge it. It doesn’t matter where it’s located, but there are benefits to each. Heavy/Flashing Blade 4 with an Atk-boosting Sacred Seal provides a lot more damage output while Heavy/Flashing Blade as the Sacred Seal is much more approachable budget-wise. If you plan to do the latter, he can instead run Death Blow in his A Passive.
   
• If you do plan to run Ninja Katana+, he can attempt to stack his Spd and run Frenzy to not only get some form of Damage Reduction for survivability purposes but also gain the ability to quad, assuming he can double. He can also run Desperation for budget purposes. Otherwise, Lull Atk/Def works well for securing Heavy/Flashing Blade checks and helps with overall damage output. On another note, if you run him in Aether Raids with Thorr support, he can instead run Wings of Mercy and ditch Heavy/Flashing Blade since Worldbreaker provides accelerated cooldown. This pairs especially well with Grandscratcher+ Elimine support and double Savage Blow.
   
• Time’s Pulse will be imperative for triggering Galeforce since it starts out at five cooldown. That being said, you can always receive external cooldown support from skills such as Infantry Pulse and Grandscratcher+ or units such as Rafiel or Velouria. If you do plan to run external support for that purpose, he can instead run Savage Blow so that it’ll be easier to take down foes in the next combat.
   
• If Scáthach is running Ninja Katana+, he may as well stack his Spd stat, and Blade Session synergizes quite well seeing as it only works in the Player Phase and can provide an upward bonus of +9 Atk and Spd. Otherwise, he’ll appreciate having Heavy/Flashing Blade, assuming it isn’t already in his A Passive, or Savage Blow if paired with the C Passive.

Weapon: Slaying Edge+ (+Spd)

Assist: Positional Assist

Special: Vital Astra

A Passive: Atk/Spd Boosting A Slot / Distant Dart / Distant Pressure

B Passive: Null Follow-Up / Spurn / Special Spiral

C Passive: Time’s Pulse / Joint Drive Spd / Joint Drive Atk / Spd Smoke / Atk Smoke

Sacred Seal: Atk/Spd Form / Mystic Boost

• If you plan to Spd stack Scáthach, you may as well go all the way with a Vital Astra kit. Vital Astra works best on units that have accelerated cooldown in their weapon as they can run Time’s Pulse and have it instantly charged. As such, a Spd refined Slaying Edge+ will do him well. He’ll mainly be receiving his Spd bonuses from his skills and external support, so there’s not much to worry about on that front and since his Spd is rather workable, it shouldn’t be too difficult to get the full Damage Reduction from Vital Astra.
   
• Any A Passive that increases his overall Atk and Spd will be important as the idea is to stack as much Spd as possible on Scáthach. Ideally, avoid skills that have recoil damage or minimize his overall bulk, whether that’s Fury or Life and Death. He could also run Distant Dart, albeit a tad expensive, or Distant Pressure. That being said, Dart is much more preferred since Pressure has recoil damage.
   
• Seeing that Vital Astra can provide Damage Reduction, he can afford to run Null Follow-Up so that he can get the best of both worlds. He can also stack Damage Reduction with Spurn or for consistent Vital Astra charges, he can run Special Spiral.
   
• Time’s Pulse will be imperative for getting Vital Astra’s Damage Reduction ready out of the gate, but it can be replicated by external support such as Grandscratcher+, Rafiel, Velouria, etc. so it’s not required. He can also take a Joint Drive, whether that’s Spd or Atk, the former arguably being more important for the set since his base Atk is massive, or for budget, Spd Smoke or Atk Smoke.
   
• A Sacred Seal that increases his overall Spd stat will work well for him since the idea is to Spd stack him. Atk/Spd Form provides the most Spd to him and is easy to trigger. Phantom Spd is an option but considering you get actual Spd from Form and it’s only a three-point difference, you may as well take Form especially since it also provides Atk. Other than that, he can take Mystic Boost if you want healing properties for survivability.