Thrasir Builds and Best IVs | Fire Emblem Heroes (FEH)

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This is a ranking page for the hero Thrasir - Omnicidal Witch 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 Thrasir.

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Thrasir Rating and Basic Information

FEH Thrasir Banner

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

Thrasir - Omnicidal Witch: Basic Information

Color / Weapon Type / Move Type
Rarity
What Kind of Character Are They? An Anima-type Mythic hero
・Nullifies enemy guaranteed follow-up attacks
・Can gain an additional attack immediately after her first

Thrasir Skills at 5★


Might: 14  Range: 2
Effective against dragon foes. If unit is within 3 spaces of an ally, grants Atk/Spd/Def/Res+4 during combat and prevents a foe’s follow-up attack. If unit attacked, inflicts Atk/Spd/Def/Res-4 on nearest ally through its next action after combat

Cooldown Count = 2
Treats foe's Def/Res as if reduced by 30% during combat.

If unit’s Spd > foe’s Spd, grants Special cooldown charge +1 and deals +5 damage per unit’s attack.
(Only highest value applied. Does not stack.)

At start of combat, if foe's HP < 100% or if【Penalty】is active on foe, inflicts Spd/Res-5 on foe, and if unit initiates combat, unit can make a follow-up attack before foe can counterattack.
【Penalty】
All effects that last "on foe through its next action." Includes penalties inflicted by a skill like Panic or Threaten and negative status effects (preventing counterattacks, restricting movement, or the effects of a skill like Triangle Adept or Guard).

Inflicts【Panic】on target and foes within 2 spaces of target after combat.
【Panic】
Converts bonuses on target into penalties through its next action.

Thrasir Best IVs

Recommended IVs

Stat Superboon/Superbane IV Recommendation
HP (18) HP Superbane ★★☆☆☆
Atk (23) No Attack IV ★★★★☆
Spd (9) Spd Boon ★★★★★
Def (6) No Def IV ★★★☆☆
Res (5) Res Bane ★★★☆☆

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

+Spd and -HP

Thrasir's best IVs are +Spd and -HP. Her B skill has a similar effect to that of Desperation built into it, so the easier it is for her to trigger follow-up attacks, the better. This stat is also a superboon for her, so an asset will allow her to get Spd+4.

Thrasir Best Builds

Heavy Pulse ThrasirHOT

Weapon Skill IconÍfingr
Special Skill IconLuna

See Explanation and Source Heroes

How to Use, Explanation

An explanation is not yet available.

Source Hero

Skill Hero
Thrasir - Omnicidal Witch Icon Thrasir - Omnicidal Witch (5★)
Thrasir - Omnicidal Witch Icon Thrasir - Omnicidal Witch (5★)

▶Other information regarding skills can be found here

Budget Thrasir

Weapon Skill IconÍfingr
Special Skill IconMoonbow

See Explanation and Source Heroes

How to Use, Explanation

An explanation is not yet available.

Source Hero

Skill Hero
Thrasir - Omnicidal Witch Icon Thrasir - Omnicidal Witch (5★)
Thrasir - Omnicidal Witch Icon Thrasir - Omnicidal Witch (5★)
Thrasir - Omnicidal Witch Icon Thrasir - Omnicidal Witch (5★)
Thrasir - Omnicidal Witch Icon Thrasir - Omnicidal Witch (5★)

▶Other information regarding skills can be found here

Adept Raven Thrasir

Special Skill IconMoonbow

See Explanation and Source Heroes

How to Use, Explanation

An explanation is not yet available.

Source Hero

Skill Hero
Thrasir - Omnicidal Witch Icon Thrasir - Omnicidal Witch (5★)
Thrasir - Omnicidal Witch Icon Thrasir - Omnicidal Witch (5★)

▶Other information regarding skills can be found here

Source Heroes for All Skills

Thrasir Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
Stat Total 162
162
HP
HP 40 40
Rank: 293/648
Atk
Atk 33 33
Rank: 386/648
Spd
Spd 39 39
Rank: 62/648
Def
Def 23 23
Rank: 435/648
Res
Res 27 27
Rank: 259/648

Stat Values

Lv 40+10 Stats (5★)

HP Atk Spd Def Res Total
+10 Merges W/ Skill Bonuses 45 52 44 27 31 199
Lv.40 +10 45 38 44 27 31 185

See Lv 40 +10 Stats With IVs
HP Atk Spd Def Res Total
+HP
Lv.40 +10
47 37 43 27 31 185
+Atk
Lv.40 +10
44 40 43 27 31 185
+Spd
Lv.40 +10
44 37 47 27 31 186
+Def
Lv.40 +10
44 37 43 30 31 185
+Res
Lv.40 +10
44 37 43 27 34 185

Stats at Lv 40

HP Atk Spd Def Res Total
5★- Adjusted for Skills 40 47 39 23 27 176
5★ Lv.40 40 33 39 23 27 162

Initial Stats (with Skills)

HP Atk Spd Def Res Total
5★ Lv.1 18 23 9 6 5 61

Stat Comparison of Similar Heroes

Hero
HP
Atk
Spd
Def
Res
Total
40 38 39 19 30 166
40 36 42 21 26 165
Thrasir Icon Thrasir
40 33 39 23 27 162
40 38 38 18 28 162
41 34 41 21 25 162
37 35 39 19 31 161
37 35 36 17 31 156
38 34 37 17 25 151
38 33 27 15 37 150

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

Thrasir Roles, Strengths, and Weaknesses

Thrasir Roles

Thrasir - Omnicidal Witch 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 Counterattack RecoveryRecovery No Refresher ImageRefresher
No Legendary Hero ImageLegendary Mythic Hero ImageMythic No Duo and Harmonized ImageDuo/Harmonized No Resplendent ImageResplendent

Thrasir 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.

Mythic Hero Effect can boost allies' HP and Def

Effect Atk Icon
Atk+3
Spd Icon
Spd+4
Def Icon
Def+5
Res Icon Res+5
Light Icon Freyja - Lady of Nightmare Image Peony - Sweet Dream Image Mila - Goddess of Love Image Eir - Merciful Death Image Dagr - Sun
Astra Icon Altina - Dawn Reginn - Bearing Hope Image Plumeria - Lewd Dream Image Naga - Dragon Divinity Image
Dark Icon Bramimond - The Enigma Image Yune - Chaos Goddess Image Triandra - Nightmare Image Hel - Death Sovereign Image Sothis - Girl on the Throne Image
Anima Icon Duma - God of Strength Image Seiros - Saint of Legend Image Líf - Lethal Swordsman Image Thrasir - Omnicidal Witch Image Mirabilis - Daydream Image

Thrasir is a Mythic Hero, and when summoned, you will receive an Anima Blessing. During Anima Season, allies who have been given an Anima Blessing and appear together with Thrasir in batlle will receive a HP+5 and Def+5 bonus to their stats, increasing the party's overall power.

Thrasir Strengths

Exclusive weapon that is effective on dragons

Thrasir's exclusive weapon Ífingr is effective on dragongs, and will give her a +4 buff to all stats in combat if she is within 3 spaces of an ally. On top of this, it will negate that foe's guaranteed follow-up attack. While this is a very good weapon skill, it will also inflict a penalty on the nearest ally after combat, so you must keep an eye on where you are positioning your units.

Exclusive skill with built in Desperation

Thrasir's B skill Killing Intent will inflict Spd/Res-5 on a foe in combat and allow Thrasir to get a follow-up attack before the foe's counterattack, if that foe has taken damage or has an active penalty cast on them.

If an ally has a Seal skill, or an ally like Duma can cast damage on all foes on the first turn, this skill will be very easy to trigger, so edit your team with an ally who can help trigger it.

Flashing Blade makes special easy to trigger

Flashing Blade 4 will give Thrasir special cooldown charge +1 and +5 damage on her special when her Spd exceeds that of the foe. This has excellent synergy with Killing Intent, and effectively makes it so that Moonbow will be ready to trigger after the first attack, and on her follow-up attack, her special will deal additional damage, easily wiping out a large number of foes.

Thrasir Weaknesses

Inflicts a debuff on nearby allies after combat

Thrasir's exclusive weapon Ífingr gives her a powerful buff during combat with a nearby ally, but after this effect triggers, it will cast a significant penalty on that ally. This penalty can be eliminated through Harsh Command or Restore, so pairing her together with an ally that has one of these skills is a good move.

Thrasir Team and Counters

Teammates for Thrasir

Plumeria Icon Plumeria Mirabilis Icon Mirabilis Reinhardt Icon Reinhardt Peony Icon Peony
Brave Hector Icon Brave Hector Reyson Icon Reyson Leanne Icon Leanne Flayn Icon Flayn

Flayn or refresher-assists

Flayn provides great heals, damage reduction, and movement-assist to Thrasir. She is a very powerful support unit! If you do not have Flayn, any other healer can do. Refresher-assist supports are great partners for Thrasir too.

Reyson or Leanne

Reyson and Leanne provide both heals and refreshes to Thrasir so she can brawl it out in the frontlines for much longer.

Blue powerhouses, preferably those who are strong against red units

Thrasir needs a partner to cover her weakness against red units. It might be smart to include a blue magic unit as well to cover foes that are strong against physical hits. Some good example for this spot are Reinhardt, Brave Hector, or even an offensively built Peony.

Thrasir Counters

Winter Altina Icon Winter Altina Líf Icon Líf Fallen Julia Icon Fallen Julia Sothis Icon Sothis
Young Caeda Icon Young Caeda Altina Icon Altina Reginn Icon Reginn Summer Byleth (F) Icon Summer Byleth (F)

High-powered red units.

Thrasir has great stats across the board. For defenses, she has decent Spd, and balanced Def and Res stats.

Altina, and Winter Altina can nail double strikes on her without the need for a Spd check so they are very deadly against Thrasir. Their access to Vantage effects also counter Killing Intent directly. Young Caeda also has native access to a Vantage effect.

Null Follow-Up

Type
Effect Disables foe’s skills that guarantee foe’s follow-up attack and foe’s skills that prevent unit’s follow-up attack.
Required SP 240 (360 if inherited)
Sacred Seal

Skill Family

Null Follow-Up 3 Null Follow-Up 2 Null Follow-Up 1

This skill counters Ífingr's effects and greatly reduces Thrasir's ability to sweep through foes.

Should you Unlock Potential?

Should You Unlock Potential for this Hero? Cannot Unlock Potential

Thrasir - Omnicidal Witch Only Appears as a 5 Star Hero!

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

Unlock Potential Tier List

Thrasir - List of Skills

Weapons

Skill Name Might Range Effect Learned At
4 2 No Effect 5★
6 2 No Effect 5★
9 2 No Effect 5★
14 2 Effective against dragon foes. If unit is within 3 spaces of an ally, grants Atk/Spd/Def/Res+4 during combat and prevents a foe’s follow-up attack. If unit attacked, inflicts Atk/Spd/Def/Res-4 on nearest ally through its next action after combat 5★

Assists

This Hero has no Assist skills that can be learned.

Specials

Skill Name Effect Learned At
(Cooldown Count = 3) Resolve combat as if foe suffered Def/Res -30%. 5★
(Cooldown Count = 2) Treats foe's Def/Res as if reduced by 30% during combat. 5★

Passives

Skill Name Effect Learned At
If unit’s Spd ≥ foe’s Spd+5, grants Special cooldown charge +1 per unit’s attack.
(Only highest value applied. Does not stack.)
5★
If unit’s Spd ≥ foe’s Spd+3, grants Special cooldown charge +1 per unit’s attack.
(Only highest value applied. Does not stack.)
5★
If unit’s Spd ≥ foe’s Spd, grants Special cooldown charge +1 per unit’s attack.
(Only highest value applied. Does not stack.)
5★
If unit’s Spd > foe’s Spd, grants Special cooldown charge +1 and deals +5 damage per unit’s attack.
(Only highest value applied. Does not stack.)
5★
At start of combat, if foe's HP < 100% or if【Penalty】is active on foe, inflicts Spd/Res-5 on foe, and if unit initiates combat, unit can make a follow-up attack before foe can counterattack.
【Penalty】
All effects that last "on foe through its next action." Includes penalties inflicted by a skill like Panic or Threaten and negative status effects (preventing counterattacks, restricting movement, or the effects of a skill like Triangle Adept or Guard).
5★
If unit initiates combat, inflicts【Panic】on target and foes within 1 space of target after combat.
【Panic】
Converts bonuses on target into penalties through its next action.
5★
If unit initiates combat, inflicts【Panic】on target and foes within 2 space of target after combat.
【Panic】
Converts bonuses on target into penalties through its next action.
5★
Inflicts【Panic】on target and foes within 2 spaces of target after combat.
【Panic】
Converts bonuses on target into penalties through its next action.
5★

Thrasir as a Source Hero

Thrasir Avatar

Value of Skills ★★★★★

Inheriting Flashing Blade 4 or Panic Smoke

Thrasir can be used to inherit the skills Flashing Blade 4 or Panic Smoke. However, as a rare and powerful Mythic Hero, we recommend building at least one Thrasir before foddering or merging any duplicates.

  • List of Source Heroes

  • The Best Fodder Units
  • How to Get Thrasir / Illustrations / Voice Actor / Quotes

    How to Get Thrasir

    Obtained through a Special Summoning Event!

    Thrasir is a limited time Hero who can be pulled from a Mythic Hero Summoning event. They do not appear in regular summons.

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

    Voice Actor and Illustrator Information

    Voice Actor
    (English)
    Illustrator コザキユースケ
    Appears In

    Illustration

    Thrasir.pngEnlarge Thrasir.pngEnlarge Thrasir.pngEnlarge Thrasir.pngEnlarge

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      • What is a recommended hero merge level for endgame that we should target eg for edelguard? Is M+1 good enough?

      • >>[63]
        Thanks a lot Mike. Yes that’s duo/ninja Lyn. I’ll keep it then.

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