Eirika

• Preferred IV: +SPD or +ATK / -RES or -HP

• Weapon: Sieglinde (+Eff)

• Assist: Reposition / Rally Resistance

• Special: Ignis / Glacies / Dragon Fang / Moonbow / Aether

• Passive A: Steady Breath / Warding Breath / Fierce Breath / Fury

• Passive B: Chill Spd / Chill skill / Renewal

• Passive C: Spd Tactic / Joint Hone Spd / Hone Spd

• Sacred Seal: Def Tactic / Fortify Def

Eirika’s primary set is designed to maximize her support potential while having her also act as a strong combatant.

An Attack or Speed Asset is ideal here. Attack gives Eirika a very much appreciated boost in power while Speed helps her to secure follow-ups as well as avoid follow-ups. Both HP and Resistance make good choices for the flaw. The refined Sieglinde is wanted not only to provide a higher Attack boost but also to allow Eirika to utilize her own boosts for whenever she fights. The Assist should be either Reposition a Rally skill. Reposition allows Eirika to assist with unit positioning while a Rally skill will help with Eirika’s support potential. In the Special Slot, Ignis, Glacies, and Dragon Fang all make for fantastic choices with any Breath as they will all reliably activate on Eirika’s second Attack on Enemy Phase. Which one to take will be a matter of figuring out which works best on one’s own Eirika. Moonbow makes for a fine Special without Steady Breath thanks to its low Cooldown. Aether, while it can’t be reliably activated in a single round, can also make a great choice since it’ll be charge very quickly with Steady Breath.

Speaking of, a Breath skill is ideal for Eirika’s A slot. Steady Breath, Warding Breath, and Fierce Breath are all amazing choices with the only difference being in which stat they boost. Which one to pick will be a matter of personal preference since they’re all great on her. On a budget, Fury will also make for a solid option, giving Eirika a strong overall boost in stats. Using the B slot for a Chill skill is a perfect and natural fit for Eirika. Chill Spd will be the general best choice as an enemy Speed debuff will be the one that the most units could benefit from, but all of them can make for fine choices. As a budget option, Renewal can be used to give Eirika some sustainability through self-healing, thus helping her combat potential.

The bulk of Eirika’s support utility comes from her C slot and Sacred Seal. Her default C slot Hone Spd fits perfectly with this set, though if you have a team which enough diversity in movement types, she can utilize the superior Spd Tactic. While expensive, Spd Tactic is a perfect fit for Eirika and a flat upgrade over Hone Spd. Joint Hone Spd is another amazing choice that is not only a stronger buff than Hone Spd but even buffs Eirika herself too. For the Sacred Seal, Eirika can put Fortify Def to great use. With Sieglinde, Fortify Def, and either Hone Spd or Spd Tactic, Eirika can boost all the important stats for a melee unit all at once. However, if the team composition allows for it, Def Tactic is definitely recommended as it’s indisputably stronger than Fortify Def if it can be activated.

• Preferred IV: +ATK or +SPD / -HP or -DEF or -RES

• Weapon: Sieglinde (+Eff)

• Assist: Reposition / Rally Def/Res+ / Rally Def/Res

• Special: Moonbow / Luna / Aether

• Passive A: Distant Counter

• Passive B: Null C Disrupt / Chill Skill / Renewal

• Passive C: Joint Hone Spd / Spd Tactic / Hone Spd

• Sacred Seal: Distant Def / Flashing Blade

This Eirika set trades some of her support potential in exchange for much greater combat capabilities. With this set, Eirika can be an imposing threat on the battlefield while still acting as great support.

Again, an Attack or Speed Asset is desired. Attack gives Eirika a much-needed power boost while Speed is also acceptable for more security from follow-up attacks as well as better follow-up potential in general. Since she’ll be fighting both physical and magical foes alike with this set, there’s no clear-cut best Flaw, so this will be a matter of personal preference. The refined Sieglinde makes for the ideal weapon choice, not just allowing her to boost the Attack of her allies, but also benefit from the boosts that she provides to them as long as they’re within two spaces of her.

For the Assist, Reposition allows Eirika to offer help with unit positioning. Alternatively, Rally Def/Res makes up for the loss of the Sacred Seal slot to a non-boost skill and allows her to boost both Defense and Resistance, especially if running the plus variant of Rally Def/Res. Moonbow is a great choice of Special due to the low cooldown, allowing it to activate consistently. If one opts for Flashing Blade in the Sacred Seal slot, the more powerful Luna becomes a strong option as well. Aether is another a good choice, but running Flashing Blade is definitely recommended with it to help offset the high cooldown.

In the A slot, Distant Counter makes for Eirika’s ideal choice and is what makes this build as effective as it is. Distant Counter allows Eirika to retaliate on any ranged foes that attack her, a skill she can put to great use thanks to her fairly good mixed bulk. To further add to her fighting ability, Null C Disrupt in the B slot allows Eirika to fight back against any pesky users of Firesweep weapons or Dazzling Staff. Alternative B slots are available, such as any of the Chill skills which will give her some extra support utility through debuffs. Renewal is a strong budget option that helps to keep her healthy through self-healing.

If available, Joint Hone Spd makes for a fantastic C slot skill which not only lets Eirika give her allies a substantial Speed buff, but also give it to herself at the same time. If the team composition allows for it, Spd Tactic is also a strong option. Her default Hone Spd works fine as well. Finally, Eirika will greatly enjoy having the Distant Def Seal, granting her with a nice defensive boost whenever she is attacked at range. This goes well with this set, allowing her to more safely bait mages into attacking her. Flashing Blade is also a strong choice, allowing her to charge her Special faster when she outspeeds her opponent and thus helping her to utilize Luna or Aether with greater ease.