Eirika (SM)

Preferred IV: +ATK or +SPD / -DEF

As SM Eirika wants to maximize her offensive power, she will ideally want an Asset in either Attack or Speed. Any of the defensive stats will make for acceptable Flaws, though Defense is arguably the best one to have as a Flaw.

Weapon: Gleipnir / Rauðrblade+ 

• Gleipnir is a strong personal weapon that buffs SM Eirika’s offensive capabilities when her opponent is at full HP. This helps her to more easily secure ORKO’s against full HP foes.

• Blade tomes are strong for many offensive mages and SM Eirika is no exception. Allowing her to take the total value of her buffs and placing it straight into her damage dealt, Rauðrblade will prove to be a very effective option.

Assist: Reposition / Rally Atk/Spd / Player Preference 

Special: Glimmer / Moonbow  

• Glimmer boosts SM Eirika’s damage by 50% of the damage already dealt. Meanwhile, Moonbow will cut the opponent’s defensive stats by 30%. They are both strong choices of Special thanks to their shared low cooldown of two. 

• With Rauðrblade in particular, Glimmer is the stronger option as the damage buffs which are applied to Blade tomes will increase the power of Glimmer.

Passive A: Swift Sparrow (2 or 3) / Atk/Spd Solo  

• Swift Sparrow 3 is an extremely strong A slot choice for offensive units thanks to the large six Attack and seven Speed boost it grants when initiation combat. SM Eirika even comes with the weaker but still very strong Swift Sparrow 2 which is perfectly usable in absence of Swift Sparrow 3.

• Atk/Spd Solo is another excellent option that’s arguably stronger than Swift Sparrow 2 but weaker than Swift Sparrow 3. This skill gives SM Eirika a large boost of six Attack and Speed, but only when she has no adjacent allies.

Passive B: Desperation 

• Desperation is SM Eirika’s default B slot skill and serves as a very strong option. When she is below 75% HP, SM Eirika will be able to make any follow-up attack immediately after her first. This can prove beneficial in situations where the foe would be able to KO SM Eirika on retaliation.

Passive C: Joint Hone Spd / Cavalry Buff / Savage Blow / Player Preference

• Joint Hone Spd allows SM Eirika to support not only her allies but also herself by proving a strong Speed boost to herself and any adjacent allies at the start of the turn. Note that this effect only happens if she has an adjacent ally, so she won’t buff herself if she starts the turn without someone next to her.

• If she’s alongside fellow cavaliers, she can make use of a skill such as Hone Cavalry or Fortify Cavalry to give them notable support.

• Savage Blow is a cheap and effective C slot that deals some chip damage to foes around her target after combat. This skill should not be used alongside Gleipnir however since SM Eirika ideally wants her foes to be at full HP.

Sacred Seal: Darting Blow / Heavy Blade / Brazen Atk/Spd / Atk/Spd 2

• Darting Blow is an excellent Sacred Seal choice, granting SM Eirika a strong Speed boost when she initiates combat.

• When using Gleipnir, the Heavy Blade Sacred Seal can also be a strong choice. As long as Heavy Blade activates, she can use this to charge Glimmer or Moonbow in a single attack.

• Brazen Atk/Spd is another great option that will grant a large offensive boost whenever SM Eirika is below 80% HP.

• In a pinch, a simple stat-boosting Seal such as Atk/Spd 2 works well to give one final offensive boost.

Preferred IV: +ATK or +SPD / -DEF

This set is designed around utilizing a hit and run style strategy in Aether Raids where she makes an attack and is then returned to safety with assistance from her teammates. For this, SM Eirika would like as much offensive potential as she can get, so an Attack or Speed Asset is what she ideally wants. Any of the defensive stats can make an effective Flaw, though Defense is arguably the best one.

Weapon: Rauðrblade+ / Gleipnir 

• Rauðrblade allows SM Eirika to take the total sum of all her field buffs and place them into her Attack stat. This makes her capable of high damage that can exceed the capabilities of Gleipnir with enough buffs.

• Gleipnir is still effective nevertheless in the absence of Rauðrblade, though is an overall weaker option when buffs are consistently present.

Assist: Reposition / Player Preference 

• Since she’ll be using a Link skill in the B slot, SM Eirika will need to make use of a movement-based Assist skill such as Reposition. Which one is chosen will be primarily a matter of personal preference.

Special: Glimmer / Moonbow  

• Glimmer is the best choice of Special with a Blade tome because the damage boost granted by it will also increase the power of Glimmer, not to also mention Glimmer’s low cooldown of two.

• Moonbow is also a good option due to having the same low cooldown of two, though is weaker than Glimmer when SM Eirika is buffed.

Passive A: Swift Sparrow (2 or 3) / Atk/Spd Solo  

• Swift Sparrow 3 is a very strong choice for boosting offensive power thanks to its strong buff of six Attack and seven Speed, as well as having the easy requirement of having to initiate combat. Swift Sparrow 2, which is far cheaper than Swift Sparrow 3 thanks to coming on SM Eirika, is also a perfectly effective option.

• As SM Eirika will likely be away from her teammates when attacking, Atk/Spd Solo can also be an effective choice for the A slot. This grants her six Attack and Speed whenever she has no adjacent allies.

Passive B: Spd/Res Link / Link Passive 

• A Link skill will allow Eirika to buff herself and allies whenever she uses her movement Assist on someone or someone else uses a movement Assist on her. In Aether Raid for example, an ally could use Smite on her to help her get into position while also buffing her. In addition to this, once she’s finished her attack, whoever is used to Reposition or Swap her to safely will then also be buffed.

• Out of all the Link skills, Spd/Res Link stands as a very strong option. Not only is it quite accessible due to being available from a 4 star Summer Fiora, but Speed and Resistance are two important stats for tanks in Aether Raids, thus helping whoever returns to safety to survive Enemy Phase easier.

Passive C: Atk Smoke / Smoke Passive / Savage Blow

• Atk Smoke will make SM Eirika debuff any foes around her target for seven Attack after her attack. This will be beneficial to whoever returns SM Eirika to safely in particular, as the opponents having debuffed Attack will make it easier for that ally to survive Enemy Phase.

• Other Smoke skills such as Spd Smoke can also prove to be effective for similar reasons as Atk Smoke.

• Savage Blow can also be an effective C slot choice. Rather than debuffing the foe, Savage Blow will allow SM Eirika to deal some chip damage to the foes surrounding her note. Note that in Aether Raids, this chip damage can potentially be offset by an enemy healer or healing tower.

Sacred Seal: Darting Blow / Smoke Passive / Savage Blow

• Darting Blow is great in the Sacred Seal slot thanks to the large Speed boost it provides when initiating combat.

• In addition to a Smoke skill in the C slot, SM Eirika can also equip one in the Sacred Seal slot to in order to debuff two stats at once.

• Much like it can be used in the C slot, Savage Blow can also be used as a Sacred Seal. It has the same benefits and drawbacks as usual. Using Savage Blow in both the C slot and Sacred Seal slot is a theoretical option, but given the chip damage can be quite easily undone with a healing tower, it might not be worth it compared to Smoke skills.