Oswin Builds and Best IVs

This is a ranking page for the hero Oswin - Impregnable Knight 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 Oswin.

Oswin Rating and Basic Information

Oswin - Impregnable Knight: Basic Information

Color / Weapon Type / Move Type	Blue / Lance / Armored
Rarity	4 Star 3 Star
What Kind of Character Are They?	・High physical bulk armored demote unit with min-maxed stat spread. ・Campaign Lance+ creates a large Atk/Def stat swing and grants 10 HP post-combat healing.

Oswin Skills at 5★

Campaign Lance+ Might: 14　 Range: 1 At start of combat, if unit's HP ≥ 25%, grants Atk/Def+5 to unit during combat, inflicts Atk/Def-X on foe during combat (X = 25% of unit's HP at start of combat; max 10), and restores 10 HP to unit after combat.

Pavise Cooldown Count = 3 Reduce damage inflicted by attacks from adjacent foes by 50%.

Sturdy Stance 2 If foe initiates combat, grants Atk/Def +4 during combat.

Odd Follow-Up 3 If it is an odd-numbered turn, unit makes a guaranteed follow-up attack and foe cannot make a follow-up attack.

Oswin Best IVs

Recommended IVs

Stat	Superboon/Superbane	IV Recommendation
HP (21)		★★★★★
Atk (17)		★★★★★
Spd (5)		★★★☆☆
Def (10)		★★★★★
Res (8)		★★☆☆☆

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

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.

+Def / -Spd

The best IVs for Oswin are +Def and -Spd. Oswin's Def is among the highest in the game at base 49, raised to 53 with a superboon. Boosting Def helps Oswin perform better as a physical tank.

Oswin's Spd and Res are his least important stats. We opted for a Spd bane in case Oswin gets attacked by dragons or other foes with adaptive damage.

+Def for a +10 merge

We recommend a +Def IV when merging Oswin up to +10 to maximize his physical bulk.

Oswin Best Builds

Shield Fighter Tank Oswin

HOT
： Arcane Qiang ： Pivot ： Pavise ： Emblem Marth	： Earthfire Boost 3 ： Shield Fighter ： A/D Twin N Save ： Squad Ace BT 3 ： -

How to Use, Explanation

This build uses Shield Fighter and Emblem Marth's ring to maximize Oswin's physical bulk. Arcane Qiang grants a follow-up attack which works well with Oswin's high Atk stat.

General Use / Budget Oswin

： Campaign Lance+ ： Pivot ： Ignis ： -

： Sturdy Stance 3 ： Vengeful Fighter 3 ： D/R Near Save 3 ： Squad Ace BT 3 ： -

How to Use, Explanation

This budget Near Save build uses skills available from Divine Codes.

Source Heroes for All Skills

Oswin Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
205
HP	51	Rank: 5/1179
Atk	47	Rank: 15/1179
Spd	31	Rank: 773/1179
Def	49	Rank: 2/1179
Res	27	Rank: 545/1179

Stat Values

Lv 40+10 Stats (5★)

Stats at Lv 40

Initial Stats (with Skills)

Stat Comparison of Similar Heroes

Hero	HP	Atk	Spd	Def	Res	Total
Ice Tribe Fjorm	43	42	47	35	40	207
Ascended Amelia	45	46	46	37	33	207
Oswin	51	47	31	49	27	205
Bors	51	47	34	48	25	205
Valentine's Ephraim	47	48	17	48	41	201
Winter Edelgard	46	47	17	47	44	201
Ninja Zelgius	49	47	16	47	42	201
Vigarde	46	47	30	44	29	196
Gilliam	47	44	21	48	35	195
Cervantes	50	45	31	44	25	195
Pirate Surtr	45	45	16	44	36	186
Gatrie	47	42	17	44	35	185
Winter Hilda	44	39	38	37	26	184
Benny	48	35	23	44	34	184
Valentine's Rudolf	46	43	21	41	29	180
Forsyth	47	40	20	39	33	179
Fallen Hardin	45	34	28	36	32	175
Valentine's Eliwood	47	38	32	29	29	175
Brave Hector	48	37	22	39	28	174
Kjelle	47	40	22	37	28	174
Winter Ephraim	45	41	23	36	29	174
Winter Robin	45	35	34	35	25	174
Valbar	49	35	25	38	26	173
Picnic Lukas	51	37	21	42	22	173
Gwendolyn	49	30	24	38	28	169
Effie	50	40	22	33	23	168

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

Oswin Roles, Strengths, and Weaknesses

Oswin Roles

Oswin - Impregnable Knight 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

Oswin is a close physical attacker (range = 1). 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.

Oswin Strengths

Min-maxed statline

Oswin's base stats are all very high on physical traits, with base 51 HP, 47 Atk, and 49 Def. With these stats, Oswin is perfectly suited for a physical tank role, similar to the enemy Lance Knights players fight on Abyssal difficulty in PvE Hero Battles.

With enough investment, Oswin can soak multiple physical hits for his team and ensure that his foes cannot pierce through his bulk.

Campaign Lance+ creates a large stat swing

Oswin's inheritable Campaign Lance+ grants him Atk/Def+5 during combat, inflicts up to Atk/Def-10 onto his foe, and grants him 10 HP post-combat healing.

While not as exciting as Arcane or exclusive weapons, it gets the job done by granting Oswin physical stats and healing to keep him healthy throughout multiple combats.

Oswin Weaknesses

Requires heavy investment

While Oswin's base stats are all focused on key areas and are quite impressive, his base kit is lackluster.

He will require significant investment for all skill slots to become relevant in today's metagame.

Low Res

Oswin's Res is quite low at only base 27, leaving him vulnerable to magic and adaptive damage.

He will be completely reliant on his high HP stat to absorb magic damage. Ensure Oswin is away from these type of foes.

Lack of Unique Skills

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

Lance armored units are quite abundant in the game, and lacking an exclusive weapon makes Oswin replaceable by better units.

Weak to Armor Effective Weapons

Oswin takes 1.5x damage from armor-effective weapons like Randgríðr, and one blow from this type of weapon will deal significant damage. Make sure you know what weapons you are up against before hopping too far into the line of battle!

Heroes with Effective Skills

Should you Unlock Potential?

Should You Unlock Potential for this Hero?

We Recommend You Unlock Potential for Oswin - Impregnable Knight!

We recommend that you use Unlock Potential to bring Oswin - Impregnable Knight from 4 Stars to 5 Stars. Oswin - Impregnable Knight is a very useful high bulk armor, so we recommend you Unlock Potential for Oswin - Impregnable Knight if your team lacks a strong high bulk armor.

Unlock Potential Tier List

Oswin - List of Skills

Weapons

Skill Name	Might	Range	Effect	Learned At
Iron Lance	6	1	No Effect	3★
Steel Lance	8	1	No Effect	3★
Campaign Lance	10	1	At start of combat, if unit's HP ≥ 25%, grants Atk/Def+5 to unit during combat, inflicts Atk/Def-X on foe during combat (X = 25% of unit's HP at start of combat; max 10), and restores 10 HP to unit after combat.	3★
Campaign Lance+	14	1	At start of combat, if unit's HP ≥ 25%, grants Atk/Def+5 to unit during combat, inflicts Atk/Def-X on foe during combat (X = 25% of unit's HP at start of combat; max 10), and restores 10 HP to unit after combat.	5★

Assists

Specials

Skill Name	Effect	Learned At
Buckler	(Cooldown Count = 3) Reduces damage inflicted by attacks from adjacent foes by 30%.	3★
Pavise	(Cooldown Count = 3) Reduce damage inflicted by attacks from adjacent foes by 50%.	4★

Passives

Skill Name	Effect	Learned At
Steady Stance 1	Grants Def +2 during combat when this unit is attacked.	3★
Sturdy Stance 1	If foe initiates combat, grants Atk/Def +2 during combat.	3★
Sturdy Stance 2	If foe initiates combat, grants Atk/Def +4 during combat.	4★
Odd Follow-Up 1	If it is an odd-numbered turn and unit's HP = 100%, unit makes a guaranteed follow-up attack and foe cannot make a follow-up attack.	3★
Odd Follow-Up 2	If it is an odd-numbered turn and unit's HP ≥ 50%, unit makes a guaranteed follow-up attack and foe cannot make a follow-up attack.	4★
Odd Follow-Up 3	If it is an odd-numbered turn, unit makes a guaranteed follow-up attack and foe cannot make a follow-up attack.	5★

Oswin as a Source Hero

Oswin has Campaign Lance+, Sturdy Stance 2, and Odd Follow-Up 3 as inheritable options.

We recommend merging your Oswin copies instead.

Community Feedback

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How to Get Oswin / Illustrations / Voice Actor / Quotes

How to Get Oswin

Obtain Through Regular Summon

Oswin is a Hero who can be pulled from any summon.

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

Current Focuses and Which You Should Pull From

Voice Actor and Illustrator Information

Illustration

FEH: Related Guides

See All Blue Heroes

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All Types of Blue Weapons

Close-Range	Ranged
Lance	Blue Tome
Blue Breath	Blue Dagger
Blue Beast	Blue Bow