Castor Builds and Best IVs

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	Red / Red Bow / Infantry
Rarity	5 Star
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★

Vulture Bow+ 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.

Dragon Fang Cooldown Count = 4 Boosts Atk by 50%.

Sudden Panic 3 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.

Threat. Atk/Def 2 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)		★★★★☆
Atk (7)		★★★★★
Spd (9)		★★★☆☆
Def (9)		★★★☆☆
Res (9)		★★☆☆☆

◯ = 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

： Vulture Bow+ ： Draw Back ： Draconic Aura ： -

： Atk/Spd Solo 3 ： Sudden Panic 3 ： Threat. Atk/Def 2 ： Atk/Spd Solo 3 ： -

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	45	Rank: 107/1171
Atk	46	Rank: 45/1171
Spd	39	Rank: 368/1171
Def	33	Rank: 346/1171
Res	24	Rank: 761/1171

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

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
Cyril	46	42	44	35	26	193
Groom Alcryst	40	44	46	35	23	188
Castor	45	46	39	33	24	187
Ninja Shinon	40	40	43	28	26	177
Valentine's Chrom	40	44	27	40	26	177
Neimi	39	39	42	21	35	176
New Year Anna	40	34	40	16	37	167
Midori	41	41	30	34	21	167
Summer Joshua	40	36	39	28	24	167
Brigid	41	37	40	30	19	167
Igrene	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	Ranged-Physical	Close-Magic	Ranged-Magic
Physical Wall	Magic Wall	Effective Weapon	Movement Assist
Exclusive Skill	All-Range Counter	Recovery	Refresher
Legendary	Mythic	Duo / Harmonized	Resplendent

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?

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
Iron Bow	4	2	Effective against flying units.	3★
Steel Bow	6	2	Effective against flying units.	3★
Vulture Bow	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★
Vulture Bow+	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
Dragon Gaze	(Cooldown Count = 4) Boosts Atk by 30%.	3★
Dragon Fang	(Cooldown Count = 4) Boosts Atk by 50%.	4★

Passives

Skill Name	Effect	Learned At
Sudden Panic 1	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★
Sudden Panic 2	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★
Sudden Panic 3	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★
Threaten Def 1	At start of turn, inflicts Def-3 on foes within 2 spaces through their next actions.	3★
Threat. Atk/Def 1	At start of turn, inflicts Atk/Def-3 on foes within 2 spaces through their next actions.	3★
Threat. Atk/Def 2	At start of turn, inflicts Atk/Def-4 on foes within 2 spaces through their next actions.	4★

Castor as a Source Hero

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

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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	Fire Emblem: Mystery of the Emblem and New Mystery of the Emblem

Illustration

FEH: Related Guides

See All Red Heroes

▶︎Return to the Red Heroes Page

All Types of Red Weapons

Close-Range	Ranged
Sword	Red Tome
Red Breath	Red Dagger
Red Beast	Red Bow