Petrine Builds and Best IVs

This is a ranking page for the hero Petrine - Icy Flame-Lancer 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 Petrine.

Petrine Rating and Basic Information

Overall Rating	8.5/10
Reroll Ranking (excluding Inherit Skill)	N/A (▶Reroll Ranking)
Ranking (including Inherit Skill)	A (▶FEH Tier List)

Petrine - Icy Flame-Lancer: Basic Information

Color / Weapon Type / Move Type	Blue / Lance / Cavalry
Rarity	4 Star 3 Star
What Kind of Character Are They?	・Exclusive weapon is effective on beast units ・Uses opponents' Res to deal damage if unit's HP is at least 50% ・Debuffs to surrounding opponents' Atk and Def

Petrine Skills at 5★

Flame Lance Might: 16　 Range: 1 Effective against beast foes. Grants Spd+3. At start of combat, if unit's HP ≥ 50%, calculates damage using foe's Res, and inflicts Spd/Res-5 on foe during combat.

Ignis Cooldown Count = 4 Boosts damage dealt by 80% of unit’s Def.

Ignis Cooldown Count = 4 Boosts damage dealt by 80% of unit’s Def.

Atk/Spd Push 3 At start of combat, if unit’s HP = 100%, grants Atk/Spd +5, but if unit attacked, deals 1 damage to unit after combat.

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

Petrine Best IVs

Recommended IVs

Stat	Superboon/Superbane	IV Recommendation
HP (18)		★★☆☆☆
Atk (25)		★★★★☆
Spd (12)		★★★★★
Def (8)		★★★☆☆
Res (5)		★★☆☆☆

◯ = 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, Petrine will always have neutral IVs by default. The only way to access IVs for this unit is through using Trait Fruits.

+Spd/-Res

The best IVs for Petrine are +Spd and -Res. Petrine has great base Spd and getting a +Spd IV helps her both avoid follow-up attacks and score some of her own. She is a great follow-up attacker as she has other tools to great a gap in Spd. Taking a bane in Def will harm her as it is a superbane and Ignis relies on Def to deal more damage. We recommend just taking a bane in Res. Just make sure to stay clear off magic units.

+Spd for a +10 Merge

We recommend a +Spd IV when merging Petrine to 10. This is for the same reasons as above. With it, she can reach an amazing 47 Spd. You can also go for a +Atk IV if you prefer scoring one-shots on beast units and other units with low Res stats.

Petrine Best Builds

Gambit Petrine

HOT
： Flame Lance ： Reposition ： Aether ： -	： Atk/Spd Clash 4 ： Gambit 4 ： Alarm Atk/Spd ： Atk/Spd Catch 3 ： -

How to Use, Explanation

This build maximizes Gambit to get the best effect possible. Alarm Atk/Spd provides utility on top of boosting combat power.

Desperation Petrine

： Flame Lance ： Reposition ： Moonbow ： -

： Fury 4 ： Desperation 3 ： Atk/Spd Menace ： Fury 3 ： -

How to Use, Explanation

This is a lower investment build using Fury and Desperation to get consecutive attacks off reliably.

Source Heroes for All Skills

Petrine Best Weapon Refine

Effect of Petrine's Refined Weapon

Exclusive Weapon Effect from Refining (Special Effect Type)
Flame Lance	SP: 400
Might: 16　Range: 1　HP: 3 Effective against beast foes. Grants Spd+3. At start of combat, if unit's HP ≥ 25%, calculates damage using foe's Res, inflicts Atk-4 and Spd/Res-5 on foe during combat, and neutralizes effects that guarantee foe's follow-up attacks and effects that prevent unit's follow-up attacks during combat. If unit initiates combat or the number of allies adjacent to unit ≤ 1, inflicts Atk/Spd/Res-4 on foe, inflicts penalty on foe's Atk/Spd/Res = current bonus on each of foe's stats × 2 (calculates each stat penalty independently; example: if foe has +7 bonus to Atk, inflicts Atk-18, for a net penalty of Atk-11), and reduces damage from foe's first attack by 30% during combat, and unit's next attack deals damage = 30% of foe's attack damage prior to reductions (resets at end of combat; only highest value applied; does not stack). ：500　：200

We recommend the Special Effect Refine for Flame Lance

Refined Flame Lance is still effective against beast foes and still targets the foe's Res stat if Petrine meets the HP threshold.

In combat, refined Flame Lance now inflicts Atk-8, Spd/Res-9 on Petrine's foe during combat, inflicts additional stat penalties on her foe during combat based on their visible stat bonuses, and grants Petrine a Null Follow-Up effect, 30% damage reduction on her foe's first attack, and damage reflection on Petrine's next attack equal to 30% of her foe's Atk prior to reductions.

These effects cripple Petrine's enemies further and improves her damage output, giving her a greater chance of knocking out her foes in one round of combat.

Petrine Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
168
HP	42	Rank: 263/1171
Atk	35	Rank: 736/1171
Spd	37	Rank: 441/1171
Def	30	Rank: 501/1171
Res	24	Rank: 761/1171

Stat Values

Lv 40+10 Stats (5★)

	HP	Atk	Spd	Def	Res	Total
+10 Merges W/ Skill Bonuses	47	56	42	34	28	207
Lv.40 +10	47	40	42	34	28	191

Stats at Lv 40

	HP	Atk	Spd	Def	Res	Total
5★- Adjusted for Skills	42	51	40	30	24	187
5★ Lv.40	42	35	37	30	24	168
4★ Lv.40	39	33	35	27	22	156
3★ Lv.40	38	31	33	26	21	149

Initial Stats (with Skills)

	HP	Atk	Spd	Def	Res	Total
5★ Lv.1	18	25	12	8	5	68
4★ Lv.1	17	20	9	7	4	57
3★ Lv.1	17	16	8	7	4	52

Stat Comparison of Similar Heroes

Hero	HP	Atk	Spd	Def	Res	Total
Mauvier	42	44	18	46	35	185
Kyle	41	47	31	45	21	185
Matthis	41	43	32	38	25	179
Roshea	41	38	35	38	21	173
Valentine's Owain	41	38	42	31	21	173
Spring Luthier	41	38	36	31	27	173
Petrine	42	35	37	30	24	168
Ferdinand	41	32	35	30	24	162
New Year Laegjarn	38	32	35	35	17	157
Finn	40	34	33	32	18	157
Camus	42	32	33	31	17	155
Roderick	40	31	34	25	24	154
Peri	35	33	33	23	30	154
Sully	42	26	34	24	28	154
Oscar	40	33	34	26	21	154
Abel	39	33	32	25	25	154

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

Petrine Roles, Strengths, and Weaknesses

Petrine Roles

Petrine - Icy Flame-Lancer 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

Petrine is a close physical attacker (range = 1). Therefore, when not accounting for the Weapon Triangle, the amount of damage she deals will be equivalent to her Atk minus the foe's Def stat.

Petrine Strengths

Flame Lance is strong against beast foes

Flame Lance is effective against beast foes. This makes Petrine stand out as there are only a few units with weapons strong against beast units. If her HP is at least 50%, it inflicts -5 Spd/Res on foe during combat so taking out beast units with one swipe would not be uncommon for Petrine.

Yes, Flame Lance inflicts a -Res debuff. The significance of this will be discussed in the next sections.

Flame Lance calculates damage using foes' Res stat

As long as Petrine's HP is at least 50%, she will calculate damage using the foe's Res stat. This improves her ability to take out beast units as the most powerful beast units in Caineghis, Tibarn and Pirate Tibarn all have low Res stats that Petrine can easily exploit.

As both the debuff and this unique effect requires Petrine to have at least 50% HP, we recommend having support units ready to heal Petrine. Ironically, the best units in supporting Petrine are the beast supports Reyson and Leanne. Both match Petrine's 3-space movement and they posses both a refresher-assist skill and a passive heal.

When refined, Flame Lance now inflicts Atk-8, Spd/Res-9 on Petrine's foe during combat, inflicts additional stat penalties on her foe during combat based on their visible stat bonuses, and grants Petrine a Null Follow-Up effect, 30% damage reduction on her foe's first attack, and damage reflection on Petrine's next attack equal to 30% of her foe's Atk prior to reductions.

Debuff surrounding foes Atk/Def

Threat. Atk/Def 2 might be an odd skill in Petrine's kit, but it has its uses. Without support, Petrine will eventually reach below 50% HP as battles go by. The -4 Atk/Def debuff will kick-in at the point of battle where Atk/Spd Push 3 has been used up and Petrine has already been damaged in previous fights—putting her well below 50% HP. It is also most likely that at this point, Petrine is deep into enemy danger zones so this AoE Atk debuff is her safety net once Petrine's other gimmicks have already been used up.

Despite this safety net, this is not ideal if Petrine is your main source of damage. Always try keeping her above 50% HP if not 100% HP!

Petrine Weaknesses

Low Res

Petrine's Res only sits at 24 at Lv.40. This makes it slightly easy for magic users to take her out. Be mindful of Petrine's positioning in relation to magical units that can easily take her out.

If not take her out, they can put her below Flame Lance's HP range with one swipe. If that happens, you would have to make adjustments to your strategy so be wary!

Weak to Cavalry Effective Weapons

Petrine takes 1.5x damage from cavalry-effective weapons like Ridersbane, and one blow from this type of weapon is sure to take her down. 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 Petrine - Icy Flame-Lancer!

We can say with confidence that you should use Unlock Potential to bring Petrine - Icy Flame-Lancer from 4 Stars to 5 Stars. Petrine - Icy Flame-Lancer is a very useful lance attacker, so we recommend you Unlock Potential for Petrine - Icy Flame-Lancer if your team lacks a strong lance attacker.

Unlock Potential Tier List

Petrine - 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★
Silver Lance	11	1	No Effect	3★
Flame Lance	16	1	Effective against beast foes. Grants Spd+3. At start of combat, if unit's HP ≥ 50%, calculates damage using foe's Res, and inflicts Spd/Res-5 on foe during combat.	5★

Assists

This Hero has no Assist skills that can be learned.

Specials

Skill Name	Effect	Learned At
Glowing Ember	(Cooldown Count = 4) Boosts damage dealt by 50% of unit’s Def.	3★
Glowing Ember	(Cooldown Count = 4) Boosts damage dealt by 50% of unit’s Def.	3★
Ignis	(Cooldown Count = 4) Boosts damage dealt by 80% of unit’s Def.	4★
Ignis	(Cooldown Count = 4) Boosts damage dealt by 80% of unit’s Def.	4★

Passives

Skill Name	Effect	Learned At
Atk/Spd Push 1	At start of combat, if unit’s HP = 100%, grants Atk/Spd +3, but if unit attacked, deals 1 damage to unit after combat.	3★
Atk/Spd Push 2	At start of combat, if unit’s HP = 100%, grants Atk/Spd +4, but if unit attacked, deals 1 damage to unit after combat.	4★
Atk/Spd Push 3	At start of combat, if unit’s HP = 100%, grants Atk/Spd +5, but if unit attacked, deals 1 damage to unit after combat.	5★
Threaten Atk 1	At start of turn, inflicts Atk-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★

Petrine as a Source Hero

Value of Skills	★★★★☆

Inheriting Atk/Spd Push 3

Petrine can be used to inherit the skill Atk/Spd Push 3. However, you can only acquire Petrine from Grand Hero Battles or from using Heroic Grails. She is also a unique and powerful hero both skill and stat-wise. This makes her a great candidate for a +10 Heroic Grail unit, so think carefully before foddering her off!

• List of Source Heroes
• The Best Fodder Units

How to Get Petrine / Illustrations / Voice Actor / Quotes

How to Get Petrine

Obtain through a Grand Hero Battle

Petrine 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)	Elizabeth Maxwell
Illustrator	motsutsu / Trys Inc.
Appears In	Fire Emblem: Path of Radiance

Illustration

FEH: Related Guides

See All Blue Heroes

▶︎Return to the Blue Heroes Page

All Types of Blue Weapons

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