Fire Emblem Heroes (FEH)

Karla Builds and Best IVs

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This is a ranking page for the hero Karla - Sword Vassal from the game Fire Emblem Heroes (FEH). Read on to learn the best IVs (Individual Values), best builds (Inherit Skill), weapon refinement, stats at Lv 40, and more for Karla.

Heroes With the Same Name
Karla - Sword Vassal Icon Karla

Focus - Heroes with Draconic Aura Featured Heroes
Ares IconAres
[8.0/10]
Karla IconKarla
[9.0/10]
Kana (F) IconKana (F)
[8.0/10]

Karla Rating and Basic Information

FEH Karla Banner

Overall Rating 9.0/10
Reroll Ranking (excluding Inherit Skill) Unranked
(▶Reroll Ranking)
Ranking (including Inherit Skill) B
(▶FEH Tier List)

Karla - Sword Vassal: Basic Information

Color / Weapon Type / Move Type
Rarity
What Kind of Character Are They? ・Damage output increases when her Spd is greater than the foe's
・Wrath makes her special easier to trigger and increases her damage output further
・Spd increases for her and her allies on odd-numbered turns

Karla Skills at 5★


Might: 16  Range: 1
Accelerates Special trigger (cooldown count-1). If unit’s Spd > foe’s Spd, deals damage  = 70% of difference between stats. (Maximum bonus of +7 damage. Combos with Phantom Spd. )

Cooldown Count = 3
Boosts Atk by 30%.

If unit’s HP ≤ 75%, Special cooldown count -1 at start of turn if Special triggers by attacking. If Special triggers, +10 damage from Special.

At start of even-numbered turns, grants Spd +6 to unit and adjacent allies for 1 turn. (Bonus granted to unit even if no allies are adjacent. )

Resplendent Attire Available

Resplendent Hero

Resplendent Attire has been released for Karla. With their Resplendent Attire equipped, they will have a different appearance, have new voice clips, and additionally, gain +2 to all stats. If you really like Karla or you want to make them stronger, you may want to buy a FEH pass and get the Resplendent Attire.

List of Resplendent Heroes

Karla Best IVs

Recommended IVs

Stat Superboon/Superbane IV Recommendation
HP (18) Normal HP ★★☆☆☆
Atk (23) No Attack IV ★★★★☆
Spd (10) Spd Boon ★★★★★
Def (6) No Def IV ★★☆☆☆
Res (7) No Res IV ★★☆☆☆

◯ = Stat gains +4 with a superboon, ✕= Stat goes down by -4 with a superbane, - = No assets or flaws

See the IV Checker for All Units Trait Fruits—How to Change IVs

When using an Ascendant Floret, we recommend getting the next superboon if it fits the hero. If not, consider what stat your hero needs most.

+Spd/-HP

The best IVs for Karla are +Spd and -HP. Karla's weapon, the Vassal's Blade, relies on her having a high Spd in order to dish-out damage. It also allows her to dish-out many follow-up attacks that greatly increase her damage output. Her HP is of less importance for her making it safe to take as her bane.

Karla Best Builds

Refined - Flashing Vassal Karla

Special Skill IconLuna
Emblem Icon: -
Passive Skill BSpurn 3
Attuned Skill Icon: -

How to Use, Explanation

To Karla, Spd is the name of the game. By stacking lots of Spd, she increases her bulk through Spurn 3 and damage through Vassal's Blade and follow-up attacks. This build does exactly just that. She also deals lots of pure, flat damage with this build thanks to Flashing Blade 4 and Vassal's Blade.

Firesweep Karla

Special Skill IconGaleforce
Emblem Icon: -
Attuned Skill Icon: -

How to Use, Explanation

Karla's refined Vassal's Blade is strictly superior than a Firesweep setup, but this is a nice set if you want to run this niche. If you cannot afford Fatal Smoke 3, you can go for Panic Smoke 3, or any Smoke skill. You can also go for a Lull skill in the B slot.

Aether Raids / General Use / Arena Karla

HOT
Emblem Icon: -
Attuned Skill Icon: -

How to Use, Explanation

This is a general build using Karla's refined weapon that can also be used in Aether Raids. While you can normally run Moonbow on her, Ruptured Sky will help her take down pesky Fallen Edelgards, while ensuring that she doesn't get counterattacked in return due to Windsweep 3. You can run Swift Sparrow 2 as a budget option or Atk/Spd Solo 3 or 4 on her A slot. Her C skill can be either Joint Drive Attack or Joint Drive Speed if you have the fodder, though you can also run Spd Smoke 3 as a budget option.
This build will also make her score high in the Arena, but you will need to replace Reposition with a higher-scoring Assist skill. Any dual Rally skill like Rally Atk/Spd+ will do in this case.

Damage Reduction Build Karla

HOT
Emblem Icon: -
Passive Skill BSpurn 3
Attuned Skill Icon: -

How to Use, Explanation

This build takes advantage of the various buffs given by the refined Vassal's Blade to stack up Spurn's damage reduction and retaliate with Ruptured Sky. The Null Follow-Up effect on Karla's weapon ensures that her ability to double is based on a speed check, which she should almost always win thanks to her naturally high speed stat and the various passive buffs given by her weapon, Joint Drive Spd, and Atk/Spd Solo 3.

Source Heroes for All Skills

Karla Best Weapon Refine

Effect of Karla's Refined Weapon

Exclusive Weapon Effect from Refining (Special Effect Type)
SP: 400
Might: 16 Range: 1 HP: +3
Accelerates Special trigger (cooldown count-1). If unit initiates combat or is within 2 spaces of an ally, grants Spd+5 to unit during combat and deals damage = 15% of unit's Spd.
At the start of combat, if foe's HP ≥ 75%, grants Atk/Spd+5 during combat and neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks during combat.
Arena Medal:500 Divine Dew:200

We recommend the Special Effect Refine for Vassal's Blade

Vassal's Balde's refine gives Karla Atk/Spd+5 if her foe's HP is ≥ 75% and a Null Follow-Up 3 effect.

We recommend getting this refine as not only will Karla be giving herself +10 Spd at the start of combat, but will also nullify an enemy unit's guaranteed follow-up attack and effects that prevent her from performing a follow-up attack.

This allows Karla to double without fear and potentially one-shot enemy units.

Weapon Refinery Tier List

Karla Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
162
HP
HP 42 42
Rank: 228/1089
Atk
Atk 35 35
Rank: 549/1089
Spd
Spd 40 40
Rank: 186/1089
Def
Def 23 23
Rank: 678/1089
Res
Res 22 22
Rank: 743/1089

Note that the graph reflects the units stats without bonuses from resplendent attire.

Stat Values

Lv 40+10 Stats (5★)

HP Atk Spd Def Res Total'
Resplendent Base Stats
With Skills
49 58 47 29 28 211
Resplendent Base Stats 49 42 47 29 28 195
Resplendent +HP 51 41 46 29 28 195
Resplendent +Atk 48 44 46 29 28 195
Resplendent +Spd 48 41 50 29 28 196
Resplendent +Def 48 41 46 32 28 195
Resplendent +Res 48 41 46 29 31 195

HP Atk Spd Def Res Total
Neutral
+Skills
47 56 45 27 26 201
Neutral 47 40 45 27 26 185
+HP 49 39 44 27 26 185
+Atk 46 42 44 27 26 185
+Spd 46 39 48 27 26 186
+Def 46 39 44 30 26 185
+Res 46 39 44 27 29 185

Stats at Lv 40

HP Atk Spd Def Res Total
Resplendent
5★ Lv 40 +Skills
44 53 42 25 24 188
Resplendent
5★ Lv 40
44 37 42 25 24 172

HP Atk Spd Def Res Total
5★- Adjusted for Skills 42 51 40 23 22 178
5★ Lv.40 42 35 40 23 22 162

Initial Stats (with Skills)

HP Atk Spd Def Res Total
Resplendent
5★ Lv.1
20 25 12 8 9 74

HP Atk Spd Def Res Total
5★ Lv.1 18 23 10 6 7 64

Stat Comparison of Similar Heroes

Hero
HP
Atk
Spd
Def
Res
Total
42 43 41 35 26 187
40 43 41 37 26 187
40 41 43 32 27 183
40 42 42 32 26 182
44 37 43 33 25 182
42 38 35 37 20 172
44 35 36 36 21 172
39 34 38 32 26 169
44 32 39 29 24 168
40 36 38 34 20 168
38 33 39 29 24 163
41 32 37 31 22 163
40 34 36 32 21 163
Karla Icon Karla
42 35 40 23 22 162

Note: Stats bonuses from skills are not taken into account.

Karla Roles, Strengths, and Weaknesses

Karla Roles

Karla - Sword Vassal Roles
Close Physical Attack ImageClose-Physical Ranged Physical AttackRanged-Physical Close Magic AttackClose-Magic Ranged MagicRanged-Magic
Physical Wall ImagePhysical Wall Magic WallMagic Wall Effective ImageEffective Weapon Movement Assist ImageMovement Assist
Exclusive Skill ImageExclusive Skill No All Range Counterattack ImageAll-Range Counter RecoveryRecovery No Refresher ImageRefresher
No Legendary Hero ImageLegendary No Mythic Hero ImageMythic No Duo and Harmonized ImageDuo /
Harmonized
Resplendent ImageResplendent

Karla is a close physical attacker (range = 1). Therefore, when not accounting for the Weapon Triangle, the amount of damage she deals will be equivalent to her Atk minus the foe's Def stat.

Karla Strengths

Acquire Additional Damage by Stacking Spd

Vassal's Blade deals bonus damage if Karla's Spd is more than her foes. The bonus damage is calculated by 70% of the difference in Spd.

With her weapon's refine, Karla is able to buff herself further with more Atk and Spd, giving herself +5 in those stats if her HP is ≥ 75%. This means that she will be able to deal more free damage that an enemy unit cannot block, regardless of their color or Def.

This effect is compatible with the Phantom Spd Sacred Seal that treats Elise as if she has +10 Spd whenever there is a Spd check.

Vassal's Blade's refine gives Null Follow-Up 3

In addition to giving herself Atk/Spd+5, the refine for Vassal's Blade will give Karla the Null Follow-Up 3 effect.

This makes her an effective offensive unit as she prevents guaranteed follow-up attacks and prevents effects that prevent her from making follow-up attacks. With this effect she can take down the most difficult units like Fallen Edelgard.

Wrath Speeds-up Special Cooldown

Wrath 3 speeds-up Karla's special cooldown and grants +10 pure damage to her whenever her special is activated. If you stick with Karla's native special, Draconic Aua, you will be able to shred through most enemies that does not have an abnormally high Def stat. This synergizes well with Karla's play style and kit as it requires her to stack a lot of Spd. Having a high Spd means you score follow-up attacks more often and both those attacks help in activating a Wrath-charged Draconic Aura.

Team gets a Spd boost on Even numbered turns

Karla's default C skill Even Spd Wave will grant Karla and adjacent allies Spd +6 on even numbered turns. Since this C skill actually gives the bonus to Karla and not just her allies, her weapon, Vassal's Blade, can utilize its effects and add to her damage output in said turns.

Karla Weaknesses

Low Defenses

Karla's Spd is high, but both her Res and Def are very low. Look out for characters like Reinhardt, Olwen, or those who possess any kind of Brave weapons their as extra attacks ignore Spd's ability to block a second hit.

Should you Unlock Potential?

Should You Unlock Potential for this Hero? Cannot Unlock Potential

Karla - Sword Vassal Only Appears as a 5 Star Hero!

Karla - Sword Vassal only appears as a 5 Star Hero. We will include whether or not you should Unlock Potential for Karla - Sword Vassal if a 4 Star version is released!

Unlock Potential Tier List

Karla - List of Skills

Weapons

Skill Name Might Range Effect Learned At
6 1 No Effect 5★
8 1 No Effect 5★
9 1 Deals +10 damage when Special triggers. 5★
16 1 Accelerates Special trigger (cooldown count-1). If unit’s Spd > foe’s Spd, deals damage  = 70% of difference between stats. (Maximum bonus of +7 damage. Combos with Phantom Spd. ) 5★

Assists

This Hero has no Assist skills that can be learned.

Specials

Skill Name Effect Learned At
(Cooldown Count = 4) Boosts Atk by 30%. 5★
(Cooldown Count = 3) Boosts Atk by 30%. 5★

Passives

Skill Name Effect Learned At
If unit’s HP ≤ 25%, Special cooldown count -1 at start of turn if Special triggers by attacking. If Special triggers, +10 damage from Special. 5★
If unit’s HP ≤ 50%, Special cooldown count -1 at start of turn if Special triggers by attacking. If Special triggers, +10 damage from Special. 5★
If unit’s HP ≤ 75%, Special cooldown count -1 at start of turn if Special triggers by attacking. If Special triggers, +10 damage from Special. 5★
At start of even-numbered turns, grants Spd +2 to unit and adjacent allies for 1 turn. (Bonus granted to unit even if no allies are adjacent. ) 5★
At start of even-numbered turns, grants Spd +4 to unit and adjacent allies for 1 turn. (Bonus granted to unit even if no allies are adjacent. ) 5★
At start of even-numbered turns, grants Spd +6 to unit and adjacent allies for 1 turn. (Bonus granted to unit even if no allies are adjacent. ) 5★

Karla as a Source Hero

Karla Avatar

Value of Skills ★★★★★

Inheriting Wrath 3 or Even Spd Wave 3

Karla can be used to inherit the skills Wrath 3 or Even Spd Wave 3. Take note that both these are high-demand but rare skills. Please think carefully to whom you are fodderring these skills onto!

How to Get Resplendent Karla / Illustrations / Quotes

How to Get Resplendent Karla

Obtain Via FEH Pass

FEH Pass
Distribution Date 7/10/2022 - 7/24/2022

Resplendent Karla can be obtained by buying a FEH Pass. After the distribution period has ended, they can also be purchased by FEH pass subscribers.

Feh Pass Benefits and Special Features

Illustrations

Illustrator Hirooka Masaki
Attire Hel

How to Get Karla / Illustrations / Voice Actor / Quotes

How to Get Karla

Obtain Through Regular Summon

Karla is a Hero who can be pulled from any summon.

Note: Not currently a featured hero in any Summon events.

Current Focuses and Which You Should Pull From

Voice Actor and Illustrator Information

Voice Actor
(English)
Allegra Clark
Illustrator Kita Senri (北千里)
Appears In

Illustration

Quotes: Special Triggered

Special Triggered Quotes are voice lines that play upon activating a Special attack.

My sword arts, brought to bear.
How can I refuse a fight?
I do not enjoy battle...
You will die.

Lv 40 5★ Dialogue

Lv 40 5★ Dialogue become available when a hero attains Lv. 40 at 5★ rarity.

My clan lives by the sword. Our lives are spent improving our skills and slaying our foes.
Even our kin fall to our blades...
After leaving the plains, I came to realize that this is not the only form strength takes.
A sword is just a sword.
One man showed me how to truly become stronger...
My brother has also realized that the way of the sword is not merely killing others.
And after spending some time observing you, I have seen a new kind of strength.
How can I describe it? It is a strength honed by choosing not to fight.
I find it fascinating.
Until I can fully understand it... I will stay by your side.

FEH: Related Guides

Focus: Heroes with Draconic Aura

Heroes with Draconic Aura Banner

Heroes from Focus - Heroes with Draconic Aura
Ares IconAres
[8.0/10]
Karla IconKarla
[9.0/10]
Kana (F) IconKana (F)
[8.0/10]

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