Thea Builds and Best IVs

This is a ranking page for the hero Thea - Stormy Flier 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 Thea.

Heroes With the Same Name
Thea	Ice Tribe Thea

Focus - Heroes with Ignis Featured Heroes
Brave Hector [9.5/10]	Thea [8.5/10]	Leon [7.0/10]

Thea Rating and Basic Information

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

Thea - Stormy Flier: Basic Information

Color / Weapon Type / Move Type	Blue / Lance / Flying
Rarity	4 Star 3 Star
What Kind of Character Are They?	・Stats increase when the foe initiates combat ・Can lower the foes' Spd and Def ・Has multiple skills to increase her Def and Spd

Thea Skills at 5★

Vanguard+ Might: 14　 Range: 1 If foe initiates combat, grants Def+7 during combat.

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

Steady Posture 2 If foe initiates combat, grants Spd/Def +4 during combat.

Seal Spd/Def 2 Inflicts Spd/Def-5 on foe through its next action after combat.

Thea Best IVs

Recommended IVs

Stat	Superboon/Superbane	IV Recommendation
HP (18)		★★☆☆☆
Atk (19)		★★★☆☆
Spd (11)		★★★★☆
Def (7)		★★★★★
Res (6)		★★★☆☆

◯ = 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.

+Def/-HP

The best IVs for Thea are +Def and -HP. Thea is mainly deployed as a physical tank so it makes the most sense to take a +Def IV. With this IV, she will reach 34 Def in without skills. If she is attacked in the enemy phase, her Def will reach 45 through her default skills. Her HP is of less importance so it can be safely taken as a bane.

+Spd for a +10 Merge

We recommend a +Spd IV when merging Thea to 10. At +10 Merges, Thea's Def will reach such high levels that pushing it up higher is a waste, considering she has access to Vanguard+ and Steady Posture 2. At this point, it would be better to opt with a +Spd IV instead to help her take less follow-up attacks and allow her to make some follow-up attacks on her own. At max merges, she reaches 42 Spd which is already a fair range.

You can still go for a +Def IV if you prefer! Take note that it is now easier to switch between IVs because of the release of Trait Fruits.

Thea Best Builds

Def Tank Thea

HOT
： Vanguard+ ： Reposition ： Ignis ： -	： Steady Posture 3 ： Quick Riposte 3 ： Atk/Def Rein 3 ： Iote's Shield ： -

How to Use, Explanation

This build takes advantage of the natural tankiness of the unit in tandem with Quick Riposte 3 to enable them to deal tons of damage in the enemy phase. Iote's Shield is vital for dealing with bow units.

Support Thea

： Wagasa+ ： Draw Back ： Glimmer ： -

： Fury 4 ： Chill Spd 3 ： Def Tactic 3 ： Res Tactic 3 ： -

How to Use, Explanation

If for some reason you need to run Thea as a support, you can run this build. This build is relatively cheap as Wagasa+ is available from New Year's Laegjarn in the Heroic Grail shop.

Refined- 10 Dragonflowers Thea

HOT
： Icy Maltet ： Reposition ： Bonfire ： -	： Atk/Def Unity ： Flow Flight 3 ： Joint Hone Spd ： Atk/Spd Form 3 ： -

How to Use, Explanation

Thea's Icy Maltet works best with 10 Dragonflowers to allow its refine's Bonus Doubler to work without supports. Atk/Def Unity also helps to negate any penalties to her already boosted Atk and Def.

Refined - Fewer Dragonflowers Thea

： Icy Maltet ： Reposition ： Moonbow ： -

： Atk/Spd Catch 4 ： Flow Flight 3 ： Atk/Spd Menace ： Atk/Spd Form 3 ： -

How to Use, Explanation

Thea's Icy Maltet can also be used with just 5 Dragonflowers for the Guard effect or even 1 Dragonflower for the large combat boosts. This build focuses on maximizing the Bonus Doubler effect to work with Flow Flight 3 while conserving Dragonflowers.

Source Heroes for All Skills

Thea Best Weapon Refine

Effect of Thea's Refined Weapon

Exclusive Weapon Effect from Refining (Special Effect Type)
Icy Maltet	SP: 400
Might: 16　Range: 1　HP: 3 At start of turn, if unit has been enhanced using Dragonflowers ten or more times, grants Atk/Def+6 for 1 turn. If foe initiates combat or if foe's HP ≥ 75% at start of combat, grants bonus to Atk/Spd/Def/Res during combat based on the number of times unit has been enhanced using Dragonflowers (one or more times grants +5, max; zero times grants +4), and also, if unit has been enhanced using Dragonflowers five or more times, inflicts Special cooldown charge -1 on foe per attack. (Only highest value applied. Does not stack.) If unit is within 3 spaces of an ally, grants Atk/Spd/Def/Res+4 to unit during combat and grants bonus to Atk/Spd/Def/Res during combat = current bonus on each of unit's stats. Calculates each stat bonus independently. ：500　：200

We recommend the Special Effect Refine for Icy Maltet

While Thea's Icy Maltet is nowhere near Brave Hector's Maltet, it is still Thea's best option for a weapon refine.

The special effect refine grants Atk/Spd/Def/Res+4 during combat as well as a Bonus Doubler effect. The bonus stats alone are better than any of the other refine options, and the Bonus Doubler effect basically ups the power of Icy Maltet even further.

Most of this weapon's effects are tied down to Dragonflower investment. For maximum results, ensure that Thea has been invested with Dragonflowers.

Thea Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
162
HP	37	Rank: 972/1171
Atk	31	Rank: 1030/1171
Spd	35	Rank: 557/1171
Def	31	Rank: 455/1171
Res	28	Rank: 479/1171

Stat Values

Lv 40+10 Stats (5★)

	HP	Atk	Spd	Def	Res	Total
+10 Merges W/ Skill Bonuses	42	49	40	36	32	199
Lv.40 +10	42	35	40	36	32	185

Stats at Lv 40

	HP	Atk	Spd	Def	Res	Total
5★- Adjusted for Skills	37	45	35	31	28	176
5★ Lv.40	37	31	35	31	28	162
4★ Lv.40	35	28	33	29	25	150
3★ Lv.40	34	27	31	27	24	143

Initial Stats (with Skills)

	HP	Atk	Spd	Def	Res	Total
5★ Lv.1	18	19	11	7	6	61
4★ Lv.1	17	14	11	7	5	54
3★ Lv.1	17	12	10	6	7	52

Stat Comparison of Similar Heroes

Hero	HP	Atk	Spd	Def	Res	Total
Zeiss	43	48	36	41	25	193
Phila	38	37	42	26	40	183
Marcia	41	37	41	32	26	177
Karin	41	37	42	26	31	177
Seteth	44	36	36	32	24	172
Sigrun	37	32	36	28	34	167
Cynthia	38	32	37	27	29	163
Thea	37	31	35	31	28	162
Shigure	40	33	37	27	25	162
Shanna	39	30	35	25	29	158
Cordelia	40	35	35	22	25	157
Clair	37	26	36	24	33	156

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

Thea Roles, Strengths, and Weaknesses

Thea Roles

Thea - Stormy Flier 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

Thea 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.

Thea Strengths

Gains a Def bonus when the foe initiates combat

Thea has the weapon Vanguard+, which will give her Def+7 when the foe initiates combat. This will reduce the damage taken from physical attackers and make her better at tanking attacks in the enemy phase.

Additionally, this increases the damage she deals from Ignis if it activates in the enemy phase.

Spd/Def increase greatly when the foe initiates combat

Thea's A skill Steady Posture gives her Spd/Def+4 whenever the foe initiates combat. Combined with Vanguard+, her Def can reach 45 if she is with a +Def IV. This allows her not only to tank huge amounts of damage from physical opponents, but it also increases the damage she deals with Ignis.

The +4 Spd cannot be overlooked! This helps her defensively by making it less likely to receive follow-up attacks. Of course, it also helps her nail follow-up attacks on her own. If she is at max merges or her Spd is being backed by friendly buffs like Goad Fliers, she makes for a great enemy phase unit.

Spd/Def Debuff After Combat

Thea's B skill, Seal Spd/Def 2, inflicts -5 Spd/Def to foes after Thea attacks them. Because the debuff is placed after Thea's attack, she will be ready to finish them off in the enemy phase if they retaliate and Thea lands a counterattack. It can also be inflicted by Thea in the enemy phase so she will be ready to capitalize in the upcoming player phase. If she also has allies nearby, they can take advantage of this debuff as well!

Thea Weaknesses

No tools against magic damage

Thea's Res sits at a fair base 28. This might seem fair at first, but Vanguard+ and Steady Posture 2 only provides Def and not Res. This means that Thea is heavily designed to take physical damage over magical damage despite the small difference between base Def and base Res.

However, as stated, 28 is a fair base Res so if you intergrate skills liked Ward Fliers and Fortify Fliers into Thea's party, she can definitely take lots of hits from a variety of units whether physical or magical.

Weak to bows

As a flying unit, Thea takes 1.5x damage from bows and weapons effective on flying units. Be sure to keep them out of the range of archers and leave them to other units.

Even though she boasts a high Def stat, bow users can still deal heavy damage to her. Try to keep said units from attacking Thea!

Heroes with Effective Skills

Should you Unlock Potential?

Should You Unlock Potential for this Hero?

We Recommend Unlocking Potential for Thea - Stormy Flier!

We recommend that you use Unlock Potential to bring Thea - Stormy Flier from 4 Stars to 5 Stars. Thea - Stormy Flier is very useful as a tank, so you may find using Unlock Potential on Thea - Stormy Flier helpful if your team lacks a party member with this role.

Unlock Potential Tier List

Thea - List of Skills

Weapons

Skill Name	Might	Range	Effect	Learned At
Iron Lance	6	1	No Effect	4★
Steel Lance	8	1	No Effect	4★
Vanguard	10	1	If foe initiates combat, grants Def+7 during combat.	4★
Vanguard+	14	1	If foe initiates combat, grants Def+7 during combat.	5★
Icy Maltet	16	1	At start of turn, if unit has been enhanced using Dragonflowers ten or more times, grants Atk/Def+6 for 1 turn. If foe initiates combat or if foe's HP ≥ 75% at start of combat, grants bonus to Atk/Spd/Def/Res during combat based on the number of times unit has been enhanced using Dragonflowers (one or more times grants +5, max; zero times grants +4), and also, if unit has been enhanced using Dragonflowers five or more times, inflicts Special cooldown charge -1 on foe per attack. (Only highest value applied. Does not stack.)	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.	4★
Ignis	(Cooldown Count = 4) Boosts damage dealt by 80% of unit’s Def.	4★

Passives

Skill Name	Effect	Learned At
Darting Stance 1	If foe initiates combat, grants Spd+2 during combat.	4★
Steady Posture 1	If foe initiates combat, grants Spd/Def +2 during combat.	4★
Steady Posture 2	If foe initiates combat, grants Spd/Def +4 during combat.	4★
Seal Spd 1	Inflicts Spd -3 on foe through its next action after combat.	4★
Seal Spd/Def 1	Inflicts Spd/Def-3 on foe through its next action after combat.	4★
Seal Spd/Def 2	Inflicts Spd/Def-5 on foe through its next action after combat.	5★

Thea as a Source Hero

Value of Skills	★★★★☆

Inheriting Vanguard+

Thea can be used to inherit the skill Vanguard+. We recommend this skill to units like Lukas and Silas as the Def stat is very important to them

• List of Source Heroes
• The Best Fodder Units

How to Get Thea / Illustrations / Voice Actor / Quotes

How to Get Thea

Obtain Through Regular Summon

Thea 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

Voice Actor (English)	Kayli Mills
Illustrator	Tobi
Appears In	Fire Emblem: The Binding Blade

Illustration

Quotes: Special Triggered

Special Triggered Quotes are voice lines that play upon activating a Special attack.

Lv 40 5★ Dialogue

Lv 40 5★ Dialogue become available when a hero attains Lv. 40 at 5★ rarity.

FEH: Related Guides

Focus: Heroes with Ignis

Heroes from Focus - Heroes with Ignis
Brave Hector [9.5/10]	Thea [8.5/10]	Leon [7.0/10]

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