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Tier Rating

Analysis by Naz
Olwen - Blue Mage Knight


Obtainable as a 5 only

Related Heroes

Hero Stats

Max Avg Total Stats at Lvl 40
HP 34
ATK 26
SPD 34
DEF 20
RES 30

Stat Variations

Level 1 Stat Variation
Low 16 6 7 4 5
Middle 17 7 8 5 6
High 18 8 9 6 7

Level 40 Stat Variations
Low 31 23 31 17 27
Middle 34 26 34 20 30
High 37 30 37 23 33

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: At a low-end value of 26, Olwen greatly appreciates a boon in Attack in order to boost her raw damage output. In addition to this, it comes as a superboon (+4 boost rather than the standard +3).

  • +SPD: A boon in Speed is also coveted, as it allows her to maximize her damage output by securing additional follow-up attacks. This is particularly effective when utilizing a Blade tome.


  • RES: Although raising it is not a priority, Olwen prefers to keep her Resistance in-tact in order to tank magical damage and effectively utilize Ploy skills.


  • -DEF: Defense is Olwen’s weakest stat and the best bane that she can receive, as dropping it further will hardly hinder her performance

  • -HP: A bane in HP is comparable to a bane in Defense but takes away from her overall bulk, making it less desirable than the aforementioned.

Skill Sets

Blar Mage Knight (Offensive Nuker)

Blárblade+ A Swift Sparrow 2
Alternate: Fury 3
Ardent Sacrifice
Alternate: Reposition
B Desperation 3
Glimmer C Spd Ploy 3
Alternate: Hone Cavalry
SP1770SRes Ploy 3

Show Explanation/Analysis
  • Preferred IV: +SPD or +ATK / -HP or -DEF

  • Weapon: Blarblade+

  • Assist: Ardent Sacrifice / Reposition

  • Special: Glimmer / Moonbow

  • Passive A: Swift Sparrow / Life and Death  / Fury

  • Passive B: Desperation

  • Passive C: Spd Ploy / Res Ploy  / Hone Cavalry / Flexible

  • Sacred Seal: Res Ploy / Heavy Blade / Speed +3 / Attack +3

As with most Blade Tome users, Speed is Olwen’s most important stat. This makes a boon in it the choice nature that Olwen can take in order to maximize her damage output by securing additional follow-up attacks. A boon in Attack also makes for a suitable choice, as it increases her raw damage output. This makes it a more effective choice against slower bulkier opponents. In particular, this can be the deciding factor in her matchup against Fallen MRobin.

For her Assist, Ardent Sacrifice has great synergy with Desperation. Olwen’s poor physical bulk of 54 makes her susceptible to getting killed in only one hit; by dropping her HP without the need to engage in combat, Olwen can safely get into Desperation’s 75% HP threshold. Otherwise, any choice of movement skill such as Reposition will make for a suitable Assist.

Glimmer is a great choice of Special on any Blade Tome user, as it scales with the additional damage received from Hone/Fortify buffs and activates within a reasonable timeframe despite the cooldown penalty tied to Blade tomes. Alternatively, Moonbow can be used as a more effective option against opponents with extraordinarily high Resistance such as Lute and Lyn (LA).

Moving on to main skills, Swift Sparrow is the premium choice of A skill by providing a strong boost to her offensive stats on initiation without losing anything else. A higher risk higher reward option is Life and Death, as it boosts her offensive stats even higher at the cost of severely damaging her overall bulk. This makes her even more susceptible to getting OHKO’d by both physical and magic damage alike. Fury makes for another solid choice by making it easier to get into Desperation range through both the 6 damage recoil taken after combat as well as by increasing her overall bulk at the cost of a marginally weaker offense. In addition to this, the boost in Resistance improves her ability to utilize Ploy skills.

Desperation is the key to any glass cannon mage; once in the HP range, Olwen will be able to safely perform follow-up attacks without the risk of getting killed on the counterattack. As for C skills, Olwen’s relatively high base Resistance of 30 allows her to effectively utilize Ploys. In particular, the Res Ploy increases Olwen’s overall damage output while Spd Ploy secures her additional follow-up attacks should they land. A more team-synergetic option is Hone Cavalry, as it allows Olwen to be a benefactor on a cavalry-centric team which she is most effective on. Otherwise, the C slot can be replaced with whatever will accommodate her team.

Last but not least, Olwen has several options for Sacred Seals. If she isn’t already utilizing Res Ploy in his C slot, it can also be run in the Sacred Seal slot. Heavy Blade is another option with a consistent activation thanks to the damage scaling property of Blade tomes. This allows Olwen to activate her Special more frequently. Finally, both Speed +3 and Attack +3 make for good picks in order to give Olwen a solid offensive stat boost.

Thunderstorm (Dire Thunder/Quad)

Dire Thunder A Life and Death 3
Alternate: Fury 3
Ardent Sacrifice
Alternate: Reposition
B Desperation 3
Luna C Hone Cavalry
SP1200SSpeed +3

Show Explanation/Analysis
  • Preferred IV: +SPD or +ATK / -HP or -DEF

  • Weapon: Dire Thunder

  • Assist: Ardent Sacrifice / Reposition

  • Special: Luna

  • Passive A: Life and Death / Swift Sparrow  / Fury

  • Passive B: Desperation

  • Passive C: Hone Cavalry / Spd Ploy / Res Ploy / Flexible

  • Sacred Seal: Speed +3 / Attack +3 / Res Ploy

This set aims to make effective use out of Olwen’s native tome, Dire Thunder. Although not as consistent of a user as her brother, Reinhardt, due to her significantly lower Attack, she makes up for it with her high Speed. This allows her to perform quad-attack against her opponents. Ardent Sacrifice remains applicable with this purely offensive style of play in order to safely get into the HP range for Desperation. As for her Special, Luna makes for a potent and cooldown-efficient option by activating on every fourth hit during a quad attack.

Life and Death makes for a fantastic A skill, as it completely mitigates the Speed penalty tied to Dire Thunder as well as giving her a sizable boost to her Attack that can potentially translate into an additional 20 damage on a quad-initiation. If one wants to retain Olwen’s ability to effectively use Ploy skills, both Swift Sparrow and Fury make for suitable alternatives at the cost of a slightly weaker offense. Desperation is once again the core of the build, as it allows Olwen to hit four times and activate her Special without the risk of getting killed on the counterattack.

Should one choose to not run Life and Death, Olwen remains a suitable user of Ploy skills in both her C and Sacred Seal slot. Spd Ploy and Res Ploy are particularly good choices in accentuating the damage output of both Olwen and her teammates against the affected targets. Last but not least, Attack +3 and Speed +3 both remain great Sacred Seal options if one desires to further increase Olwen’s damage output.


Among the two mage knights released carrying the coveted Dire Thunder tome, Olwen has often been seen in the shadow of her brother, Reinhardt. Statwise, she mostly sports the makings of an offensive mage with the combination of high Speed and low-end overall bulk. Her main problem stems from her Attack; at a base value of only 26, Olwen is considerably weaker in raw damage compared to her competition such as Reinhardt, L’Arachel, and Spring Catria.

Despite her lack of Attack, she makes up for it with her aforementioned high Speed. Not only does this open up the opportunity to potentially quad with Dire Thunder, it also makes her an exceptional Blade tome user. In addition to this, her relatively high Resistance makes her a solid user of Ploy skills giving her longevity in supporting both herself and her team. Unfortunately, her defensive potential is quite low overall. At a base value of only 54, Olwen’s physical bulk is very poor. This makes her often rely on Desperation in order to avoid counterattacks from Distant Counter units, as they will likely take her out in only a single hit. Despite her relatively high Resistance, her magical bulk is nothing impressive either at a base value of 64.

Despite these flaws, Olwen is a solid offensive mage that can perform well both on and off a cavalry team and a solid benefactor to her allies through her ability to effectively utilize Ploy skills.


Great Speed

At a base value of 34, Olwen is tied at the second highest Speed out of any cavalry unit. This is key in securing kills, especially when utilizing a Blade tome.

Dire Thunder

Although not as consistent of a user as Reinhardt, Olwen can still make effective use out of this powerful weapon by thanks to her high Speed giving her to potential to quad attack.


In addition to her superior mobility, Olwen has access to class-exclusive buffs such as Hone Cavalry.


Low Attack

At a base value of only 26 Attack, Olwen lacks in the raw damage department and often requires team support such as Hone Cavalry in order to secure kills. This is especially prevalent when utilizing Dire Thunder.

Terrible Physical Bulk

With only 54 physical bulk, Olwen is highly susceptible to getting killed in only a single hit by many physical attackers. In addition to this, her puny 34 HP leaves her open to almost any user of Panic Ploy.


Cavalry status comes with its disadvantages. In addition to forests and trenches making it more difficult to navigate maps, Olwen has an innate weakness to cavalry effective weapons.

Team Options

As a cavalry unit, Olwen appreciates fellow cavalry allies that can provide her with powerful class-exclusive buffs such as Hone Cavalry. This is especially important when utilizing a Blade tome. With her poor physical bulk, Olwen also enjoys physically bulky allies that can tank the hits for her. Offense-oriented units such as her also love refresher support. Finally, Olwen enjoys having red allies that can cover her Weapon Triangle disadvantage.

  • Cavalry: Sigurd, Eldigan, Brave Lyn, Gunnthrá, and Eirika (SM) all make for fantastic teammates by providing Olwen with powerful buffs such as Hone Cavalry while keeping up with her high movement.

  • Physically Bulky Units: Nowi, Zelgius, Hector, Adult Tiki, and Fallen Hardin are all strong allies, as they can tank physical hits while keeping Olwen safe.

  • Refreshers: As with any offensive unit, Olwen will appreciate refresher support in order to continue her onslaught or move out of enemy range. Performing Olivia, Ninian, Performing Azura all make for fantastic options. In particular, Performing Azura makes for an especially great teammate by providing buffs to all of Olwen’s stats.

  • Strong Reds: Young Tiki, Ayra, Sanaki, and Winter Tharja all perform well in checking both physical and magical greens that may pose a threat to Olwen.


Due to her exceptionally poor physical bulk, Olwen is quick to break in the face of physical damage. As such, strong Defense-targeting attackers will make short work of her sparse bulk. In addition to this, magically bulky green units also pose a major threat, as they will be able to easily tank Olwen’s attacks while dealing massive damage in return. Last but not least, Olwen’s status as a cavalry unit gives her an innate weakness to opponents carrying class-effective weapons.

  • Strong Physical Attackers: Powerful physical attackers such as Raven, Cordelia, Bride Cordelia, and Minerva all make short work of Olwen’s meager physical bulk.

  • Magically Bulky Greens: Julia, Deirdre, Myrrh, and Halloween Henry can easily wall off Olwen’s damage thanks to their high Resistance and Weapon Triangle advantage. In addition to this, Julia and Deirdre can mitigate Olwen’s damage output even further by ignoring Hone/Fortify buffs that she receives.

  • Effective Weapons: Anti-Cavalry weapons, both physical and magic alike will easily tear through Olwen’s health bar due to their high damage multiplier. Common users include Rhajat, Micaiah, Gray, and Gerome.

Weapon Skills

Weapons SP Rng. Mt.
Blue Tome Users Only
50 2 4
Blue Tome Users Only
100 2 6
Blue Tome Users Only
200 2 9
Dire ThunderSpd-5. Attack twice when initiating combat.
Learns by default at 5 ★
Non-Inheritable skill.
400 2 9
Weapon Evolution
Weapon Upgrades
Weapon Upgrades

Support Skills

Support Skills Rng. SP
RepositionMoves adjacent ally to opposite side of unit.
Learns by default at 5 ★
1 150

Passive Skills

Passive Skills SP Slot
Warding Blow 1Grants Res+2 during combat if unit initiates the attack.
Non-inheritable by Staff-wielding units.
Warding Blow 2Grants Res+4 during combat if unit initiates the attack.
Non-inheritable by Staff-wielding units.
Warding Blow 3Grants Res+6 during combat if unit initiates the attack.
Non-inheritable by Staff-wielding units.
Unlocks at 5 ★
Spur Res 1Grants adjacent allies Res+2 during combat
Inheritable by all units.
Spur Res 2Grants adjacent allies Res+3 during combat
Inheritable by all units.
Ward CavalryGrants cavalry allies within 2 spaces Def/Res+4 during combat. Requires Spur Def 2 or Spur Res 2.
Only inheritable by cavalry units.
Unlocks at 5 ★

Other Info

Fire Emblem: Thracia 776

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