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Tier Rating

Analysis by Adonyx
Fir - Sword Student


Obtainable as a 3 - 4 only

Hero Stats

Max Avg Total Stats at Lvl 40
HP 41
ATK 25
SPD 36
DEF 24
RES 31

Stat Variations

Level 1 Stat Variation
Low 18 5 9 4 6
Middle 19 6 10 5 7
High 20 7 11 6 8

Level 40 Stat Variations
Low 37 22 33 21 28
Middle 41 25 36 24 31
High 44 29 39 28 34

IV Sets

Key stats worth increasing through nature if possible.
Complementary stats that matter, but not to the point of picking them over key stats for nature increase.
Relatively worthless stat that can safely be decreased through nature.


  • +ATK: This is an excellent Asset, as it helps Fir deal damage outside of Special activations. It is also a four-point Asset, making it extra efficient.

  • +SPD: This is a good choice of Asset both offensively and defensively, as it allows Fir to double more units and avoid getting doubled herself.


  • RES: Fir’s high Resistance stat is what sets her apart from many other sword units; combined with Nameless Blade, Fir can take advantage of her Resistance to unleash high-damage Specials.

    • On a budget, a -RES IV is an option mainly if Fir is not running skills like Def Ploy, Distant Counter, or Warding Breath, as it allows her to better maintain her physical bulk.


  • -HP: Despite being a four-point Flaw, a -HP IV can be very useful to simultaneously make it easier to enter HP thresholds (such as from Wrath or Desperation) as well as to receive Infantry Pulse support.

  • -DEF: Allows Fir to retain her excellent magical bulk, and helps solidify her role as an anti-mage.

Skill Sets

Absolute Zero (Defensive Nuke)

Nameless Blade (+Eff) A Warding Breath
Reposition B Wrath 3
Alternate: Swordbreaker 3
Iceberg C Def Ploy 3
Alternate: Threaten Def 3
SP1605SQuick Riposte 3

Show Explanation/Analysis
  • Preferred IV: +ATK / -HP
  • Weapon: Nameless Blade (+Eff)
  • Assist: Reposition
  • Special: Iceberg / Glacies
  • Passive A: Warding Breath / Steady Breath
  • Passive B: Wrath / Swordbreaker / Quick Riposte
  • Passive C: Def Ploy / Varies with Team
  • Sacred Seal: Quick Riposte / Quickened Pulse / Close Def

One of the biggest benefits of Nameless Blade is that Fir can now easily activate Iceberg or Glacies on any given combat while still benefiting from +10 damage on Specials. There is powerful synergy between Warding Breath, refined Nameless Blade, and Iceberg - Fir can activate Iceberg immediately after being attacked once, and potentially add +20 damage on top of that (if she enters Wrath’s HP threshold after that attack). This results in massive damage retaliation and can wipe out a huge portion of non-blue units - red or colorless enemies need 83 physical bulk to survive an unbuffed and unsupported Fir’s Wrath-powered Iceberg.

This combo gets even more potent with either the Quick Riposte of Quickened Pulse seals. Quick Riposte can allow Fir to activate Iceberg twice in a single combat if she gets doubled. Quickened Pulse allows Fir to run Glacies instead of Iceberg, resulting in a whopping 93 damage nuke, or +48 damage (Glacies with Warding Breath, refined Nameless Blade, and Wrath).

Warding Breath is key to this build, as the accelerated Special charge can result in instant Special activations. The +4 Resistance is a great benefit as well, as it further increases Iceberg or Glacies damage. Steady Breath is an acceptable alternative; although Defense isn’t quite as important as Resistance, the accelerated Special charge is the most important aspect.

Wrath is a powerful component of this set, as not only does it grant +10 damage to Specials when in the 75% HP threshold, but it also reduces the Special cooldown by 1 every turn (assuming Fir is within the HP threshold) - this can allow Fir to pull off Glacies nukes multiple times. If Wrath is unavailable, then Swordbreaker or Quick Riposte are both acceptable alternatives. The Close Def seal is a good choice if running Quick Riposte as a B skill.

Def Ploy is an excellent skill that makes great use of Fir’s strong Resistance stat - debuffing enemy Defense makes it that much harder for them to survive a Special nuke.

Icebrand (Defensive Bruiser)

Nameless Blade (+Eff) A Distant Counter
Alternate: Fury 3
Reposition B Wrath 3
Alternate: Swordbreaker 3
Iceberg C Def Ploy 3
SP1695SQuick Riposte 3

Show Explanation/Analysis
  • Preferred IV: +ATK or +SPD / -HP or -DEF
  • Weapon: Nameless Blade (+Eff)
  • Assist: Reposition
  • Special: Iceberg / Glacies
  • Passive A: Distant Counter / Fury
  • Passive B: Wrath / Quick Riposte / Swordbreaker
  • Passive C: Def Ploy / Varies with Team
  • Sacred Seal: Quick Riposte / Distant Def

With the introduction of Nameless Blade, Fir no longer has to choose between Slaying Edge and Wo Dao for her weapon - now she can effectively have both at the same time. The combination of reduced Special cooldown, as well as +10 damage on Special activations, makes her Specials significantly more potent than ever before. She can get +35 damage on a Special activation from Iceberg, refined Nameless Blade, and Wrath; this massive burst damage is a huge increase to her offensive potential.

The choice between Iceberg and Glacies is mostly dependent upon the level of available team support. With only 36 base Speed (without a +SPD IV), Fir is vulnerable to getting doubled by speedy units. If she can get Speed buffs from her team to avoid getting doubled, then Iceberg is a better choice to ensure a Special activation. Glacies is a big boost in damage but relies either on Fir getting doubled or receiving Infantry Pulse support (if not doubled) to be able to activate.

Distant Counter is vitally important to allow Fir to safely deal with mages by baiting and killing them on the counter. Fir is particularly well suited for this, thanks to her high Resistance. On a budget, however, Fury is easily workable.

Wrath will increase the damage that Fir can deal with her specials, which are already the key to her damage output. It is best paired with the Quick Riposte seal so that Fir will be able to secure doubles against even the speediest of enemies. Otherwise, Quick Riposte can be run in Fir’s B slot, paired with the Distant Def seal. Swordbreaker is also an option if running Fury for a budget set.

Def Ploy works very well for Fir, as it allows her to utilize her high Resistance stat at all times. While it is incredibly potent, it is not strictly necessary for this build and can be changed out for any other C slot as preferred.


Fir is an archetypal myrmidon unit, with high Speed and low Attack. One of her distinguishing traits is her high Resistance. While normally her Resistance isn’t particularly useful considering that she’s a melee unit, skills like Def Ploy and Distant Counter allow her to make use of it and specialize in countering mages.

The combination of Fir’s high Speed and Resistance allow her to consistently activate Specials, which serve as the majority of her damage. This is vitally important as her low Attack results in her having difficulty damaging any unit with decent Defense.

With the introduction of Nameless Blade, Fir has experienced a significant jump in effectiveness. She no longer has to choose between Slaying Edge or Wo Dao - now she can easily activate Iceberg or Glacies every combat while also stacking +10 damage on top of them. As a result, she is now capable of damage output that rivals even the strongest sword units. Unfortunately, she is still outclassed in other ways, such as having lower Speed than the likes of Ayra and Mia. Regardless, Fir is now a powerful sword nuker that can take advantage of her strong Resistance to set her apart from most other sword units.


Nameless Blade

Fir’s shiny new Prf weapon allows her to receive the benefits of a Slaying Edge and Wo Dao simultaneously - this results in quick and exceptionally powerful Iceberg or Glacies activations, which can easily make up for her low Attack.

High Magical Bulk

Fir has 72 magical bulk at neutral, making her extremely resilient against mages and dragons. Her decent Resistance also makes her a great user of Ploys (particularly Def Ploy).

Great Availability

Fir’s availability as a 3-4* summonable unit makes her exceptionally easy to pull and obtain optimal IVs for.


Awful Attack

At 25 base, Fir has the lowest Attack of all sword users, tied with Caeda and Selena, resulting in her being almost entirely reliant on Special activations to deal damage.

Special Activation Reliant

As a consequence of her low Attack, Fir is almost completely reliant on Special activations to deal damage. This means that any unit running Guard will be nearly immune to Fir’s damage output.

Requires Heavy Investment

Although the skills to turn Fir’s stat spread into a workable build exist, they are mostly locked to 5* exclusive units (Hector for Distant Counter, Nephenee for Wrath) or limited units (Arvis or Summer Gaius for Def Ploy, Legendary Ike for Warding Breath).


Unfortunately for Fir, she shares a role with some of the strongest units in the game, such as Mia and Ayra. While Fir has a niche thanks to her high magical bulk and Nameless Blade, Mia and Ayra still have enough that they can essentially do what Fir excels at, all while being extremely powerful in other areas that Fir is not.

Team Options

  • Buffers: Units such as Ephraim, Delthea, and Brave Lucina all make excellent teammates as they can provide vital stat boosts to Fir’s offenses.
  • Debuffers: Debuffing enemies directly increases Fir’s combat capabilities in the same way that buffing her does, making units like Gunnthrá, Spring Sharena, Soren, and Lute great allies.
  • Infantry Pulse: The cooldown reduction from Infantry Pulse results in Fir being able to run higher cooldown Specials (namely Glacies) for massive damage. These units need to have decent HP to buff Fir, particularly if she has a refined weapon, so units like Fae, Bartre, and Lukas are all run candidates.
  • Strong Greens: Allies that can handle the blue units that Fir struggles against are very helpful teammates. Fittingly, her father Bartre is an excellent candidate, both for Infantry Pulse support as well as handling blues. Other examples include Dorcas, Brave Ike, Fallen Robin (M), and Myrrh.


  • Phyiscal Tanks: Physically bulky units like Zelgius, Xander, and Lukas can easily tank Fir’s attacks and take very little damage outside of special activations.

    • Any physically bulky unit running Guard will be completely immune to Fir’s attacks. In particular, units like Lukas and Shiro can afford to run Guard in their kits, and will completely stonewall Fir.

  • Strong Physical Damage: Fir has decent physical bulk, but she can’t handle powerful physical damage-dealing threats very well, particularly blue units like Effie, Ephraim, and Cordelia.

  • Strong Blue Mages: Despite Fir’s strong magical bulk, powerful blue mages like Reinhardt or blue blade tome mages like Linde or Summer Corrin can overpower Fir’s high magical bulk thanks to weapon triangle advantage.

  • Debuffers: Dedicated debuffer units like Lute, Arvis, Spring Sharena, and Gunnthrá can severely debilitate Fir’s stats, resulting in a significant decrease in effectiveness.

Weapon Skills

Weapons SP Rng. Mt.
Iron Sword
Only Inheritable by Sword Units.
50 1 6
Steel Sword
Learns by default at 3 ★
Only Inheritable by Sword Units.
100 1 8
Killing EdgeAccelerates Special trigger (cooldown count-1).
Learns by default at 4 ★
Unlocks at 3 ★
Only Inheritable by Sword Units.
200 1 7
Killing Edge+Accelerates Special trigger (cooldown count-1).
Learns by default at 5 ★
Unlocks at 5 ★
Only Inheritable by Sword Units.
300 1 11
Nameless BladeAccelerates Special trigger (cooldown count -1)
Unlocks at 5 ★
Non-Inheritable skill.
400 1 16
Weapon Evolution
Weapon Upgrades
Weapon Upgrades

Special Skills

Special Skills SP Turns
Chilling WindBoosts damage dealt by 50% of unit's Res.
Learns by default at 4 ★
Unlocks at 3 ★
Non-inheritable by Staff-wielding units.
100 4
GlaciesBoosts damage dealt by 80% of unit's Res.
Unlocks at 4 ★
Non-inheritable by Staff-wielding units.
200 4

Passive Skills

Passive Skills SP Slot
Speed +1Grants Spd+1
Inheritable by all units.
Speed +2Grants Spd+2
Inheritable by all units.
Unlocks at 3 ★
Speed +3Grants Spd+3
Inheritable by all units.
Unlocks at 4 ★
Pass 1Unit can pass through foes if its own HP ≥ 75%.
Inheritable by all units.
Unlocks at 3 ★
Pass 2Unit can pass through foes if its own HP ≥ 50%.
Inheritable by all units.
Unlocks at 4 ★
Pass 3Unit can pass through foes if its own HP ≥ 25%.
Inheritable by all units.
Unlocks at 5 ★

Other Info

Fire Emblem: The Binding Blade

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Official Hero Artwork