Fire Emblem Heroes (FEH)

Sonia Builds and Best IVs

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This is a ranking page for the hero Sonia - Inhuman Beauty 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 Sonia.


Sonia Rating and Basic Information

FEH Sonia Banner

Overall Rating 8.5/10
Reroll Ranking (excluding Inherit Skill) N/A
(▶Reroll Ranking)
Ranking (including Inherit Skill) B
(▶FEH Tier List)

Sonia - Inhuman Beauty: Basic Information

Color / Weapon Type / Move Type
Rarity
What Kind of Character Are They? ・Refined Fimbulvetr Morn grants 【Essence Drain】, and 【Bonus Doubler】 to Sonia and one ally, grants true damage, true damage reduction, a guaranteed follow-up attack, and post-combat healing to Sonia.

Sonia Skills at 5★


Might: 14  Range: 2
At start of combat, if unit's HP ≥ 25%, inflicts Atk/Res-6 on foe during combat, deals damage = 20% of unit's Res (excluding area-of-effect Specials), reduces damage from foe's first attack by 7 ("first attack" normally means only the first strike; for effects that grant "unit attacks twice," it means the first and second strikes), and inflicts Special cooldown charge -1 on foe per attack during combat (only highest value applied; does not stack).

Cooldown Count = 4
Boosts damage dealt by 80% of unit’s Res.

Grants Def/Res +4. Inflicts Atk -3.

At start of turn, inflicts Atk/Res-4 on foes within 2 spaces through their next actions.

Sonia Best IVs

Recommended IVs

Stat Superboon/Superbane IV Recommendation
HP (18) HP Superbane ★★★☆☆
Atk (21) No Attack IV ★★★★★
Spd (5) Spd Boon ★★★☆☆
Def (8) No Def IV ★★★★☆
Res (9) 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.

Neutral IVs by default!

As a hero obtainable only through Grand Hero Battle, Sonia will always have neutral IVs by default. The only way to access IVs for this unit is through using Trait Fruits.

+Atk/-Spd

The best IVs for Sonia are +Atk/Spd. Because her Spd stat is already low, it's good to have it as a bane and increase her Atk.

With the Quick Riposte 3 seal, she'll potentially be able to tank and counterattack ranged enemy units.

However, because Sonia's not a very powerful unit to begin with, we recommend not investing a Trait Fruit in her to change her stats.

+Spd for +10 Merge

If you are merging Sonia, it's recommended to increase her Spd. This, at least, will get her to 32 Spd at +10, and reinforcing this with skills and Seals will allow her to potentially double enemy units.

If you would like to focus on one-shotting enemy units, you can +Atk her instead.

Sonia Best Builds

Essence Drain Support Sonia

HOT
Special Skill IconIceberg
Emblem Icon: -
Attuned Skill Icon: -

How to Use, Explanation

This build imitates Fallen Nergal's role by being bulky enough to sustain attacks while providing Essence Drain support to an ally.

Budget Sonia

Special Skill IconIceberg
Emblem Icon: -
Passive Skill BGuard 3
Attuned Skill Icon: -

How to Use, Explanation

This budget build uses cheap skills available on common units to improve Sonia's performance while providing Essence Drain support to an ally.

Source Heroes for All Skills

Sonia Best Weapon Refine

Effect of Sonia's Refined Weapon

Exclusive Weapon Effect from Refining (Special Effect Type)
SP: 400
Might: 14 Range: 2 HP:
At start of combat, if unit's HP ≥ 25%, inflicts Atk/Res-6 on foe during combat, deals damage = 20% of unit's Res (excluding area-of-effect Specials), reduces damage from foe's first attack by 7 ("first attack" normally means only the first strike; for effects that grant "unit attacks twice," it means the first and second strikes), and inflicts Special cooldown charge -1 on foe per attack during combat (only highest value applied; does not stack).
At start of turn, if unit's HP ≥ 25%, grants Atk/Res+6, 【Essence Drain】, and 【Bonus Doubler】 to unit and target allies for 1 turn (if support partner is on player team, targets any support partner within 2 spaces of unit; otherwise, targets ally with the highest Atk within 2 spaces of unit).
At start of combat, if unit's HP ≥ 25%, inflicts Atk/Res-6 on foe during combat, unit makes a guaranteed follow-up attack, and restores 7 HP to unit after combat.
Arena Medal:500 Divine Dew:200

We recommend the Special Effect Refine for Fimbulvetr Morn

At the start of each turn, refined Fimbulvetr Morn grants Atk/Res+6, 【Essence Drain】, and 【Bonus Doubler】 to Sonia and either her support partner within 2 spaces or the ally with the highest Atk within 2 spaces (if support partner is not present).

【Essence Drain】 is a powerful effect first introduced by Fallen Nergal and allows the unit with 【Essence Drain】 to steal foe's bonus effects. 【Essence Drain】 alone made Fallen Nergal a top tier unit, and now Sonia gains a similar effect, albeit not as powerful as it only grants 【Essence Drain】 to Sonia and one ally.

Refined Fimbulvetr Morn also inflicts Atk/Res-12 and a Guard effect onto Sonia's foe during combat and grants Sonia true damage equal to 20% of her Res, 7 true damage reduction on her foe's first attack, a guaranteed follow-up attack, and 7 HP post-combat healing.

Sonia Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
166
HP
HP 40 40
Rank: 489/1200
Atk
Atk 35 35
Rank: 736/1200
Spd
Spd 24 24
Rank: 980/1200
Def
Def 32 32
Rank: 383/1200
Res
Res 35 35
Rank: 195/1200

Stat Values

Lv 40+10 Stats (5★)

HP Atk Spd Def Res Total
+10 Merges W/ Skill Bonuses 45 49 28 40 44 206
Lv.40 +10 45 40 28 36 40 189

HP Atk Spd Def Res Total
+HP
Lv.40 +10
47 39 28 36 39 189
+Atk
Lv.40 +10
44 42 28 36 39 189
+Spd
Lv.40 +10
44 39 32 36 39 190
+Def
Lv.40 +10
44 39 28 39 39 189
+Res
Lv.40 +10
44 39 28 36 42 189

Stats at Lv 40

HP Atk Spd Def Res Total
5★- Adjusted for Skills 40 44 24 36 39 183
5★ Lv.40 40 35 24 32 35 166
4★ Lv.40 37 33 22 29 33 154
3★ Lv.40 36 31 21 28 31 147

Initial Stats (with Skills)

HP Atk Spd Def Res Total
5★ Lv.1 18 21 5 8 9 61
4★ Lv.1 17 17 4 7 9 54
3★ Lv.1 17 14 4 7 8 50

Stat Comparison of Similar Heroes

Hero
HP
Atk
Spd
Def
Res
Total
40 45 31 23 43 182
39 46 30 21 46 182
40 43 32 19 43 177
40 44 27 20 46 177
43 39 25 23 40 170
Sonia Icon Sonia
40 35 24 32 35 166
36 41 32 17 39 165
40 39 28 19 36 162
42 35 31 21 33 162
41 38 17 35 30 161
35 35 28 18 35 151
38 37 33 20 23 151

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

Sonia Roles, Strengths, and Weaknesses

Sonia Roles

Sonia - Inhuman Beauty Roles
Close Physical AttackClose-Physical Ranged Physical AttackRanged-Physical Close Magic AttackClose-Magic Ranged Magic ImageRanged-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
No Resplendent ImageResplendent

Sonia is a ranged magic attacker (range = 2). Therefore, when not accounting for the Weapon Triangle, the amount of damage she deals will be equivalent to her Atk minus the foe's Res stat.

Sonia Strengths

Fimbulvetr Morn applies 【Essence Drain】 to Sonia and one ally

At the start of each turn, refined Fimbulvetr Morn grants Atk/Res+6, 【Essence Drain】, and 【Bonus Doubler】 to Sonia and either her support partner within 2 spaces or the ally with the highest Atk within 2 spaces (if support partner is not present).

【Essence Drain】 is a powerful effect first introduced by Fallen Nergal and allows the unit with 【Essence Drain】 to steal foe's bonus effects. 【Essence Drain】 alone made Fallen Nergal a top tier unit, and now Sonia gains a similar effect, albeit not as powerful as it only grants 【Essence Drain】 to Sonia and one ally.

Refined Fimbulvetr Morn also inflicts Atk/Res-12 and a Guard effect onto Sonia's foe during combat and grants Sonia true damage equal to 20% of her Res, 7 true damage reduction on her foe's first attack, a guaranteed follow-up attack, and 7 HP post-combat healing.

Sonia Weaknesses

Low Spd Makes Her Easily Doubled

Despite being tanky, Sonia possessed low Spd, making her easily doubled by a lot of other units.

Keep her away from foes that can land doubles or even quads against her to ensure her survival.

Should you Unlock Potential?

Should You Unlock Potential for this Hero? C Rank Icon

We Do Not Recommend Unlocking Potential for Sonia - Inhuman Beauty!

We cannot recommend you to Unlock Potential to make Sonia - Inhuman Beauty a 5 Star Hero. Sonia - Inhuman Beauty is difficult to make use of except under specific conditions. Unless Sonia - Inhuman Beauty is a favorite character of yours or you have excess Hero Feathers to spare, we recommend you pass on Unlocking their Potential.

Unlock Potential Tier List

Sonia - List of Skills

Weapons

Skill Name Might Range Effect Learned At
8 2 Grants Def/Res +6 during combat if foe initiates combat and uses bow, dagger, magic, or staff. 3★
12 2 Grants Def/Res +6 during combat if foe initiates combat and uses bow, dagger, magic, or staff. 5★
14 2 At start of combat, if unit's HP ≥ 25%, inflicts Atk/Res-6 on foe during combat, deals damage = 20% of unit's Res (excluding area-of-effect Specials), reduces damage from foe's first attack by 7 ("first attack" normally means only the first strike; for effects that grant "unit attacks twice," it means the first and second strikes), and inflicts Special cooldown charge -1 on foe per attack during combat (only highest value applied; does not stack). 5★

Assists

This Hero has no Assist skills that can be learned.

Specials

Skill Name Effect Learned At
(Cooldown Count = 4) Boosts damage dealt by 50% of unit’s Res. 3★
(Cooldown Count = 4) Boosts damage dealt by 80% of unit’s Res. 4★

Passives

Skill Name Effect Learned At
Grants Res +3. Inflicts Atk -3. 3★
Grants Def/Res +3. Inflicts Atk -3. 4★
Grants Def/Res +4. Inflicts Atk -3. 5★
Inflicts Res -3 on foes within 2 spaces through their next actions at the start of each turn. 3★
At start of turn, inflicts Atk/Res-3 on foes within 2 spaces through their next actions. 3★
At start of turn, inflicts Atk/Res-4 on foes within 2 spaces through their next actions. 4★

Sonia as a Source Hero

Sonia Avatar

Value of Skills ★★☆☆☆

All of Sonia's skills are inheritable!

Sonia's whole kit carries inheritance value. Be warned though as you can only get a limited number of Sonia copies from the Heroic Grail shop.

How to Get Sonia / Illustrations / Voice Actor / Quotes

How to Get Sonia

Obtain through a Grand Hero Battle

Sonia is a Hero who, for a limited time, can be obtained through completing a Grand Hero Battle for the first time. They do not appear in regular summons. After the event has ended, they can be obtained by using Heroic Grails.

Voice Actor and Illustrator Information

Voice Actor
(English)
Larissa Gallagher
Illustrator Yoneko
Appears In

Illustration

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