Fire Emblem Heroes (FEH)

Castor Builds and Best IVs

FEH Castor Banner

This is a ranking page for the hero Castor - Loving Son 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 Castor.

Castor Rating and Basic Information

Overall Rating 8.0/10
Reroll Ranking (excluding Inherit Skill) -
(▶Reroll Ranking)
Ranking (including Inherit Skill) C
(▶FEH Tier List)

Castor - Loving Son: Basic Information

Color / Weapon Type / Move Type
Rarity
What Kind of Character Are They? ・Weapon skill inflicts Atk/Def penalties onto foe based on current stat penalties already applied to them

Castor Skills at 5★


Might: 12  Range: 2
Effective against flying foes. If unit is not adjacent to an ally, inflicts penalty on foe's Atk/Def during combat = 5 + any current penalty on each of those stats. Calculates each stat penalty independently.

Cooldown Count = 4
Boosts Atk by 50%.

At start of turn, if any foe’s HP ≤ unit’s HP-1 and that foe is adjacent to another foe, inflicts【Panic】on that foe.
【Panic】Converts bonuses on target into penalties through its next action.

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

Castor Best IVs

Recommended IVs

Stat Superboon/Superbane IV Recommendation
HP (19) Normal HP ★★★★☆
Atk (7) Attack Boon ★★★★★
Spd (9) Spd Boon ★★★☆☆
Def (9) 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, Castor will always have neutral IVs by default. The only way to access IVs for this unit is through using Trait Fruits.

+Atk / -Res

The best IVs for Castor are +Atk and -Res. Castor's stats are just average, with nothing standing out aside from Atk. As such, boosting his Atk is the best way to make Castor perform his job as intended.

Castor's Res is below average at only base 24 and reducing it through a bane will not impact any of his matchups.

+Atk for a +10 merge

We recommend +Atk when merging Castor up to +10 as it is his most important stat.

Castor Best Builds

Budget Castor

Assist Skill IconDraw Back
Emblem Icon: -
Attuned Skill Icon: -

How to Use, Explanation

Castor is lackluster compared to recently released units, but he can still hold his own with a budget build. Stacking Spd skills may not allow him to outspeed the fastest metagame units, but it is enough to outspeed the units a tier below that.

Source Heroes for All Skills

Castor Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
187
HP
HP 45 45
Rank: 107/1190
Atk
Atk 46 46
Rank: 45/1190
Spd
Spd 39 39
Rank: 368/1190
Def
Def 33 33
Rank: 346/1190
Res
Res 24 24
Rank: 761/1190

Stat Values

Lv 40+10 Stats (5★)

HP Atk Spd Def Res Total
+10 Merges W/ Skill Bonuses 50 62 44 38 28 222
Lv.40 +10 50 50 44 38 28 210

HP Atk Spd Def Res Total
+HP
Lv.40 +10
52 50 43 37 28 210
+Atk
Lv.40 +10
49 54 43 37 28 211
+Spd
Lv.40 +10
49 50 47 37 28 211
+Def
Lv.40 +10
49 50 43 40 28 210
+Res
Lv.40 +10
49 50 43 37 31 210

Stats at Lv 40

HP Atk Spd Def Res Total
5★- Adjusted for Skills 45 58 39 33 24 199
5★ Lv.40 45 46 39 33 24 187
4★ Lv.40 42 43 37 31 22 175
3★ Lv.40 41 41 35 29 21 167

Initial Stats (with Skills)

HP Atk Spd Def Res Total
5★ Lv.1 19 19 9 9 9 65
4★ Lv.1 18 14 9 9 8 58
3★ Lv.1 18 16 8 8 8 58

Stat Comparison of Similar Heroes

Hero
HP
Atk
Spd
Def
Res
Total
46 42 44 35 26 193
40 44 46 35 23 188
Castor Icon Castor
45 46 39 33 24 187
40 40 43 28 26 177
40 44 27 40 26 177
39 39 42 21 35 176
40 34 40 16 37 167
41 41 30 34 21 167
40 36 39 28 24 167
41 37 40 30 19 167
42 37 37 26 24 166

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

Castor Roles, Strengths, and Weaknesses

Castor Roles

Castor - Loving Son Roles
Close Physical AttackClose-Physical Ranged Physical Attack ImageRanged-Physical Close Magic AttackClose-Magic Ranged MagicRanged-Magic
Physical Wall ImagePhysical Wall Magic WallMagic Wall Effective ImageEffective Weapon Movement Assist ImageMovement Assist
No 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

Castor is a ranged physical attacker (range = 2). Therefore, when not accounting for the Weapon Triangle, the amount of damage he deals will be equivalent to his Atk minus the foe's Def stat.

Castor Strengths

Vulture Bow+ amplifies penalties

Castor's inheritable Vulture Bow+ inflicts Atk/Def-5 to his foe and additional Atk/Def penalties depending on the current Atk/Def stat penalties already applied to the foe.

This weapon continues the Vulture weapon line, joining others such as Vulture Blade+ and Rauðrvulture+.

While this weapon isn't as impactful as other inheritable weapons such as Arcane Darkbow, Arcane Náströnd, or even Whitecap Bow+, it packs enough power when utilized properly to be relevant in battle.

Castor Weaknesses

Underwhelming Stat Line

Castor's stats are all over the place, with only HP and Atk being above average in modern standards.

He simply just lacks the raw stats necessary to stand out, especially without an exclusive skill to call his own.

As of now, Castor is just outclassed by Cyril, another Red Bow Infantry unit that is also acquirable for free.

Lack of Unique Skills

Castor suffers from not having any unique skills to call his own, making him unable to stand out amongst other units.

Infantry Bow units are quite abundant in the game, and lacking an exclusive weapon makes Castor replaceable by better units.

Should you Unlock Potential?

Should You Unlock Potential for this Hero? C Rank Icon

We Do Not Recommend Unlocking Potential for Castor - Loving Son!

We cannot recommend you to Unlock Potential to make Castor - Loving Son a 5 Star Hero. Castor - Loving Son is difficult to make use of except under specific conditions. Unless Castor - Loving Son 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

Castor - List of Skills

Weapons

Skill Name Might Range Effect Learned At
4 2 Effective against flying units. 3★
6 2 Effective against flying units. 3★
8 2 Effective against flying foes. If unit is not adjacent to an ally, inflicts penalty on foe's Atk/Def during combat = 5 + any current penalty on each of those stats. Calculates each stat penalty independently. 3★
12 2 Effective against flying foes. If unit is not adjacent to an ally, inflicts penalty on foe's Atk/Def during combat = 5 + any current penalty on each of those stats. Calculates each stat penalty independently. 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%. 3★
(Cooldown Count = 4) Boosts Atk by 50%. 4★

Passives

Skill Name Effect Learned At
At start of turn, if any foe’s HP ≤ unit’s HP-5 and that foe is adjacent to another foe, inflicts【Panic】on that foe.
【Panic】Converts bonuses on target into penalties through its next action.
3★
At start of turn, if any foe’s HP ≤ unit’s HP-3 and that foe is adjacent to another foe, inflicts【Panic】on that foe.
【Panic】Converts bonuses on target into penalties through its next action.
4★
At start of turn, if any foe’s HP ≤ unit’s HP-1 and that foe is adjacent to another foe, inflicts【Panic】on that foe.
【Panic】Converts bonuses on target into penalties through its next action.
5★
At start of turn, inflicts Def-3 on foes within 2 spaces through their next actions. 3★
At start of turn, inflicts Atk/Def-3 on foes within 2 spaces through their next actions. 3★
At start of turn, inflicts Atk/Def-4 on foes within 2 spaces through their next actions. 4★

Castor as a Source Hero

Castor Avatar

Value of Skills ★★★☆☆

Castor has Vulture Bow+, Sudden Panic 3, and Threat. Atk/Def 2 as inheritable options.

None of these skills are worth inheriting onto your favorite units.

List of Source Heroes The Best Fodder Units

Community Feedback

How would you rate Castor?

Top tier hero. Must promote and merge. 0
Votes
Promote if you need his/her archetype. 0
Votes
Promote to 5 stars if you like this hero. 3
Votes
Summon for his/her Skill Inheritance options. 0
Votes
Pass on this hero. 9
Votes

If you have feedback about this hero page, let us know in the comments section below!

How to Get Castor / Illustrations / Voice Actor / Quotes

How to Get Castor

Obtain through a Grand Hero Battle

Castor 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)
Phil Ava
Illustrator Yamada Kotaro
Appears In

Illustration

FEH: Related Guides

See All Red Heroes

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▶︎Return to the Red Heroes Page

All Types of Red Weapons

Close-Range Ranged
SwordSword Red TomeRed Tome
Red BreathRed Breath Red DaggerRed Dagger
Red BeastRed Beast Red BowRed Bow

Comment

2 Anonymous@Game810 months

Free units haven't been too good recently. Only a handful of free units are worth building, and even then, they would need investment to be comparable to premium 5 star units. Mauvier is pretty good for a free unit if you're looking for a project to work on.

1 twztid13 10 months

Wow, the free units have been garbage since I've been playing (dec 2023....unless you could do a +10, maybe?). Have they always just been useless, even for new players? Lumeria was probably the best one, but even she gets wrecked by anything newer, easily.

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