Legendary Byleth (M) Builds and Best IVs

This is a ranking page for the hero Byleth - The Fódlan Star 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 Legendary Byleth (M).

Heroes With the Same Name
Byleth (F)	Byleth (M)
Summer Byleth (F)	Legendary Byleth (M)
Legendary Byleth (F)	Brave Byleth (F)
Sage Byleth (M)	Fallen Byleth (F)
Winter Byleth (M)

Legendary Byleth (M) Rating and Basic Information

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

Byleth - The Fódlan Star: Basic Information

Color / Weapon Type / Move Type	Green / Green Tome / Infantry
Rarity	5 Star
What Kind of Character Are They?	・Green Legendary hero in Water season ・Has built-in Null Follow-Up on Professorial Text ・Can provide Null Follow-Up effect to nearby allies ・Sublime Heaven II is a quick special that negates damage reduction and can deal with dragon and beast opponents

Legendary Byleth (M) Skills at 5★

Professorial Text Might: 14　 Range: 2 Accelerates Special trigger (cooldown count-1). If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+5 during combat, and also, if unit's Spd > foe's Spd during combat, neturalizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks. Allies within 2 spaces gain: "If unit's Spd > foe's Spd during combat, neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks."

Sublime Heaven II Cooldown Count = 2 At start of turn, if unit's Special cooldown count is at its maximum value, grants Special cooldown count-1 to unit. Boosts Special damage by 30% of unit's Atk. If in combat against a dragon foe or beast foe, boosts Special damage by 60% instead of 30%. When Special triggers, neutralizes "reduces damage by X%" effects from non-Special skills.

Atk/Def Ideal 4 At start of combat, if unit's HP = 100% or if 【Bonus】 is active on unit, grants Atk/Def+7 to unit during combat. At start of combat, if unit's HP = 100% and 【Bonus】 is active on unit, grants an additional Atk/Def+2 to unit during combat.

Lull Atk/Res 3 Inflicts Atk/Res-3 on foe and neutralizes foe’s bonuses to Atk/Res (from skills like Fortify, Rally, etc.) during combat.

Atk/Spd Oath 4 At start of turn, if unit is within 2 spaces of an ally, grants Atk/Spd+6 and the following status to unit for 1 turn: "Unit can move to a space adjacent to any ally within 2 spaces." If unit is within 2 spaces of an ally, grants Atk/Spd+3 to unit during combat.

Legendary Byleth (M) Best IVs

Recommended IVs

Stat	Superboon/Superbane	IV Recommendation
HP (18)		★★★☆☆
Atk (9)		★★★★☆
Spd (11)		★★★★★
Def (3)		★★☆☆☆
Res (8)		★★☆☆☆

◯ = 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/-Res

The best IVs for Legendary Byleth (M) are +Spd and -Res.

A +Spd IV adds to his best asset, his high Spd stat, and it almost guarantees that the effects of his weapon is active.

His Res is already on the low side, so it would be safe to take it as a bane. You can also settle with -HP.

+Spd for a +10 merge

We recommend a +Spd IV when merging Legendary Byleth (M) to 10. This is for the same reasons above.

Legendary Byleth (M) Best Builds

Refined Legendary Byleth (M)

HOT
： Professorial Text ： Draw Back ： Sublime Heaven II ： -	： Atk/Spd Finish 4 ： Lull Spd/Res 4 ： Atk/Spd Oath 4 ： Atk/Spd Form 3 ： -

How to Use, Explanation

This build stacks Atk and Spd to allow Byleth to deal as much damage as possible. Lull Spd/Res softens up his foes even further and neutralizes their bonuses.

Arena Legendary Byleth (M)

： Professorial Text ： Draw Back ： Sublime Heaven II ： -

： Atk/Spd Ideal 4 ： Watersweep 3 ： Atk/Spd Oath 4 ： Blade Session 3 ： -

How to Use, Explanation

This is a budget build using skills available from Divine Codes and easily summonable heroes. Watersweep prevents mages and dragons from counterattacking, allowing Byleth to easily dispose of them.

Source Heroes for All Skills

Legendary Byleth (M) Best Weapon Refine

Effect of Legendary Byleth (M)'s Refined Weapon

Exclusive Weapon Effect from Refining (Special Effect Type)
Professorial Text	SP: 400
Might: 14　Range: 2　HP: Accelerates Special trigger (cooldown count-1). If unit initiates combat or if there is an ally within 3 rows or 3 columns centered on unit, grants Atk/Spd/Def/Res+5 to unit and deals +7 damage during combat (except when dealing damage with area-of-effect Specials), and also, if unit's Spd > foe's Spd, neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks during combat. For allies within 3 rows or 3 columns centered on unit, grants Atk/Spd+5 to those allies during their combat, and also, if those allies' Spd > foe's Spd, neutralizes effects that guarantee foe's follow-up attacks and effects that prevent those allies' follow-up attacks during their combat. At start of combat, if unit's HP ≥ 25%, grants Atk/Spd/Def/Res+4 to unit, grants bonus to unit's Atk/Spd/Def/Res = number of allies within 3 rows or 3 columns centered on unit, neutralizes unit's penalties to Atk/Spd, neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit, and reduces damage from foe's first attack by 30% during combat ("first attack" normally means only the first strike; for effects that grant "unit attacks twice," it means the first and second strikes). Neutralizes penalties to Atk/Spd on allies within 3 rows or 3 columns centered on unit during their combat. ：500　：200

We recommend the Special Effect Refine for Professorial Text

Refined Professorial Text grants Atk/Spd+4, Def/Res+9 to Byleth in-combat, bonus stats to his allies within 3 rows and 3 columns, bonus true damage, a Tempo effect, and 30% damage reduction on foe's first attack.

Additionally, it grants both Byleth and his allies within 3 rows and 3 columns Atk/Spd+5, Spd-based Null Follow-Up, and Atk/Spd debuff neutralization.

This refine aids both Byleth and his allies, improving both his combat and his support.

Legendary Byleth (M) Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
166
HP	40	Rank: 489/1171
Atk	39	Rank: 458/1171
Spd	41	Rank: 260/1171
Def	25	Rank: 737/1171
Res	21	Rank: 949/1171

Stat Values

Lv 40+10 Stats (5★)

	HP	Atk	Spd	Def	Res	Total
+10 Merges W/ Skill Bonuses	45	58	46	29	25	203
Lv.40 +10	45	44	46	29	25	189

Stats at Lv 40

	HP	Atk	Spd	Def	Res	Total
5★- Adjusted for Skills	40	53	41	25	21	180
5★ Lv.40	40	39	41	25	21	166

Initial Stats (with Skills)

	HP	Atk	Spd	Def	Res	Total
5★ Lv.1	18	23	11	3	8	63

Stat Comparison of Similar Heroes

Hero	HP	Atk	Spd	Def	Res	Total
Rearmed Lilina	40	48	35	17	48	188
Fallen Nergal	40	45	16	39	43	183
New Year Kvasir	40	45	47	21	30	183
Rearmed Sonya	38	47	32	20	45	182
Ascended Ced	43	45	46	22	26	182
Brave Soren	40	45	34	16	47	182
Tea Tailtiu	39	42	44	21	31	177
Citrinne	38	46	27	22	44	177
Heiðr	38	45	45	29	20	177
Legendary Robin (M)	40	45	30	31	31	177
Bastian	40	44	28	20	45	177
Céline	37	41	44	17	38	177
Arthur	40	42	41	30	18	171
Limstella	41	39	23	32	36	171
Young Ilyana	40	41	30	18	42	171
Gatekeeper	41	37	17	40	36	171
Legendary Byleth (M)	40	39	41	25	21	166
Pent	40	38	39	19	30	166
Luthier	43	37	36	20	30	166
Orochi	40	40	24	24	37	165
Asbel	40	36	42	21	26	165
Young Merric	41	34	41	21	25	162
Legendary Celica	40	38	38	18	28	162
Thrasir	40	33	39	23	27	162
Ced	37	35	39	19	31	161
Lugh	37	35	36	17	31	156
Lewyn	38	34	37	17	25	151

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

Legendary Byleth (M) Roles, Strengths, and Weaknesses

Legendary Byleth (M) Roles

Byleth - The Fódlan Star 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

Legendary Byleth (M) is a ranged magic 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 Res stat.

Legendary Effect raises Arena Score

Eff.	Atk+2	Spd+3	Def+4	Res+4	Pair Up

Pair Up and Eff.	Atk+2	Spd+3	Def+4	Res+4

As a Legendary Hero, you will gain a Water Blessing when summoning L!Byleth (M). Additionally, being a Water type Legendary Hero means that during Water Seasons, other allies with a Water Blessing will receive HP+3 when they appear in battle with L!Byleth (M), and Legendary Byleth's total stats will be treated as 190. This will lead to a higher Arena Score.

Legendary Byleth (M) Strengths

Professorial Text provides both offense and support

Professorial Text accelerates Byleth's special cooldown and provides buffs to all of Byleth's stats.

Upon winning a Spd check, Professorial Text:

1. Neutralizes effects that guarantee foe's follow-up attacks like Vengeful Fighter 3
2. Neutralizes effects that prevent Byleth from scoring follow-up attacks like Wary Fighter 3

Professorial Text also provides the above effects to nearby allies, assuming those allies also win a Spd check of their own.

When refined, Professorial Text grants Atk/Spd+4, Def/Res+9 to Byleth in-combat, bonus stats to his allies within 3 rows and 3 columns, bonus true damage, a Tempo effect, and 30% damage reduction on foe's first attack.

Additionally, it grants both Byleth and his allies within 3 rows and 3 columns Atk/Spd+5, Spd-based Null Follow-Up, and Atk/Spd debuff neutralization.

This refine aids both Byleth and his allies, improving both his combat and his support.

Sublime Heaven II pre-charges every turn

Sublime Heaven II is an upgraded version of Byleth's original exclusive Special, Sublime Heaven. This improved Special has built-in Time's Pulse 3, boosts damage by 30% of his Atk (60% against dragons and beasts), and neutralizes non-Special damage reduction effects whenever it triggers.

This Special skill only has 2 cooldown, lowered to 1 when equipping Professorial Text. With the Time's Pulse 3 effect, Byleth will have this Special ready every turn!

Legendary Byleth (M) Weaknesses

Dependence on Spd Checks

Byleth needs to win a Spd check to activate the most important part of his weapon - the Null Follow-Up effect. With common meta units having high speed, Byleth needs to be invested well enough to ensure he wins the Spd check every time.

Low Def and Res

Legendary Byleth's Def and Res are on the low side and this makes it easy for melee units to take him out.

Be mindful of his positioning in relation to these types of units as even if his Spd is higher, units with very high or have brave weapons can defeat him.

Should you Unlock Potential?

Should You Unlock Potential for this Hero?	Cannot Unlock Potential

Byleth - The Fódlan Star Only Appears as a 5 Star Hero!

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

Unlock Potential Tier List

Legendary Byleth (M) - List of Skills

Weapons

Skill Name	Might	Range	Effect	Learned At
Wind	4	2	No Effect	5★
Elwind	6	2	No Effect	5★
Rexcalibur	9	2	No Effect	5★
Professorial Text	14	2	Accelerates Special trigger (cooldown count-1). If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+5 during combat, and also, if unit's Spd > foe's Spd during combat, neturalizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks. Allies within 2 spaces gain: "If unit's Spd > foe's Spd during combat, neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks."	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%.	5★
Draconic Aura	(Cooldown Count = 3) Boosts Atk by 30%.	5★
Sublime Heaven	(Cooldown Count = 2) Boosts damage by 25% of unit's Atk. If in combat against a dragon foe or beast foe, boosts damage by 50% instead of 25%. Disables non-Special skills that "reduce damage by X%".	5★
Sublime Heaven II	(Cooldown Count = 2) At start of turn, if unit's Special cooldown count is at its maximum value, grants Special cooldown count-1 to unit. Boosts Special damage by 30% of unit's Atk. If in combat against a dragon foe or beast foe, boosts Special damage by 60% instead of 30%. When Special triggers, neutralizes "reduces damage by X%" effects from non-Special skills.	5★

Passives

Skill Name	Effect	Learned At
Atk/Def Ideal 1	At start of combat, if unit's HP = 100% or if 【Bonus】 is active on unit, grants Atk/Def+3 to unit during combat.	5★
Atk/Def Ideal 2	At start of combat, if unit's HP = 100% or if 【Bonus】 is active on unit, grants Atk/Def+4 to unit during combat.	5★
Atk/Def Ideal 3	At start of combat, if unit's HP = 100% or if 【Bonus】 is active on unit, grants Atk/Def+5 to unit during combat.	5★
Atk/Def Ideal 4	At start of combat, if unit's HP = 100% or if 【Bonus】 is active on unit, grants Atk/Def+7 to unit during combat. At start of combat, if unit's HP = 100% and 【Bonus】 is active on unit, grants an additional Atk/Def+2 to unit during combat.	5★
Lull Atk/Res 1	Inflicts Atk/Res-1 on foe and neutralizes foe’s bonuses to Atk/Res (from skills like Fortify, Rally, etc.) during combat.	5★
Lull Atk/Res 2	Inflicts Atk/Res-2 on foe and neutralizes foe’s bonuses to Atk/Res (from skills like Fortify, Rally, etc.) during combat.	5★
Lull Atk/Res 3	Inflicts Atk/Res-3 on foe and neutralizes foe’s bonuses to Atk/Res (from skills like Fortify, Rally, etc.) during combat.	5★
Atk/Spd Oath 1	At start of turn, if unit is adjacent to an ally, grants Atk/Spd+3 for 1 turn.	5★
Atk/Spd Oath 2	At start of turn, if unit is adjacent to an ally, grants Atk/Spd+4 for 1 turn.	5★
Atk/Spd Oath 3	At start of turn, if unit is adjacent to an ally, grants Atk/Spd+5 for 1 turn.	5★
Atk/Spd Oath 4	At start of turn, if unit is within 2 spaces of an ally, grants Atk/Spd+6 and the following status to unit for 1 turn: "Unit can move to a space adjacent to any ally within 2 spaces." If unit is within 2 spaces of an ally, grants Atk/Spd+3 to unit during combat.	5★
Time's Pulse 1	At the start of every third turn, if Special cooldown count is at its maximum value, grants Special cooldown count-1.	5★
Time's Pulse 2	At the start of every second turn, if Special cooldown count is at its maximum value, grants Special cooldown count-1.	5★
Time's Pulse 3	At start of turn, if Special cooldown count is at its maximum value, grants Special cooldown count-1.	5★

Legendary Byleth (M) as a Source Hero

Value of Skills	★★★★☆

The following skills have good inheritance value:

• Atk/Def Ideal 4
• Lull Atk/Res 3
• Time's Pulse 3

We do not recommend fodderring off Legendary Byleth (M)! But the skills listed above have inheritance value. Take note that Lull Atk/Res 3 is becoming more and more common so you may want to look at the other two skills instead. As of July 2021, Atk/Def Ideal 4 is currently rarer than Time's Pulse 3.

• List of Source Heroes
• The Best Fodder Units

How to Get Legendary Byleth (M) / Illustrations / Voice Actor / Quotes

How to Get Legendary Byleth (M)

Obtained through a Special Summoning Event!

Legendary Byleth (M) is a limited time Hero who can be pulled from a Legendary Hero Summoning event. They do not appear in regular summons.

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)	Zach Aguilar
Illustrator	HAGIYA Kaoru
Appears In	Fire Emblem: Three Houses

Illustration

FEH: Related Guides

Legendary Heroes - Elincia: Undaunted Queen

Heroes from Legendary Heroes - Elincia: Undaunted Queen
Fallen Chrom [9.5/10]	Legendary Hinoka [9.5/10]	Legendary Elincia [9.0/10]	Seiros [9.0/10]
Gilliam [9.0/10]	Noah [9.0/10]	Dagr [9.0/10]	Legendary Byleth (M) [9.0/10]
Ótr [9.0/10]	Legendary Claude [9.0/10]	Gotoh [9.0/10]	Fallen Maria [9.5/10]

See All Green Heroes

▶︎Return to the Green Heroes Page

All Types of Green Weapons

Close-Range	Ranged
Axe	Green Tome
Green Breath	Green Dagger
Green Beast	Green Bow