Fire Emblem Heroes (FEH)

Riev Builds and Best IVs

FEH Riev Banner

This is a ranking page for the hero Riev - Blood Beryl 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 Riev.


Riev Rating and Basic Information

FEH Riev Banner

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

Riev - Blood Beryl: Basic Information

Color / Weapon Type / Move Type
Rarity
What Kind of Character Are They? ・Weapon skill accelerates Special trigger, inflicts debuffs on enemy units, restricts units with extra movement skills to 1 space, and grants buffs to himself.

Riev Skills at 5★


Might: 14  Range: 2
Accelerates Special trigger (cooldown count-1). At start of turn, inflicts Atk/Spd/Def/Res-5 and 【Stall】on foes on the enemy team with the lowest Spd and any foes within 2 spaces of those foes. At start of combat, if foe's HP ≥ 75%, grants Atk/Res+6 to unit during combat.
【Stall】If unit has "unit can move 1 extra space," converts that effect into "restricts movement to 1 space" through its next action.

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

At start of combat, if unit's HP = 100% or if 【Bonus】 is active on unit, grants Atk/Res+5 to unit during combat.

If unit initiates attack, foes within 2 spaces of target take 7 damage after combat.

Riev Best IVs

Recommended IVs

Stat Superboon/Superbane IV Recommendation
HP (19) Normal HP ★★★☆☆
Atk (25) No Attack IV ★★★★★
Spd (6) Spd Boon ★★☆☆☆
Def (4) Def Boon ★★☆☆☆
Res (10) Res Boon ★★★★☆

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

+Atk/-Def

The best IVs for Riev are +Atk and -Def. A +Atk IV is best for him as he wants to deal as much damage as possible. With this IV, the range of units he can take out with one hit will increase. His Def is of less importance so it is safe to take it as his bane.

+Atk for a +10 Merge

We recommend a +Atk IV when merging Riev to 10. This is for the same reasons as stated above.

Riev Best Builds

General Use Riev

Special Skill IconIceberg
Emblem Icon: -
Attuned Skill Icon: -

How to Use, Explanation

Riev's weapon is the star here, but we want to up his firepower with Atk/Res Ideal 4 and debuff enemies with Lull Atk/Res 3. Double Savage Blow will help tick down enemy units faster for the rest of his team to clean up.

Source Heroes for All Skills

Riev Stats

Stat Rankings

Neutral Stats at Lv. 40 (5★)
170
HP
HP 43 43
Rank: 192/1184
Atk
Atk 39 39
Rank: 458/1184
Spd
Spd 25 25
Rank: 938/1184
Def
Def 23 23
Rank: 826/1184
Res
Res 40 40
Rank: 87/1184

Stat Values

Lv 40+10 Stats (5★)

HP Atk Spd Def Res Total
+10 Merges W/ Skill Bonuses 48 58 29 27 45 207
Lv.40 +10 48 44 29 27 45 193

HP Atk Spd Def Res Total
+HP
Lv.40 +10
50 43 29 27 44 193
+Atk
Lv.40 +10
47 46 29 27 44 193
+Spd
Lv.40 +10
47 43 33 27 44 194
+Def
Lv.40 +10
47 43 29 31 44 194
+Res
Lv.40 +10
47 43 29 27 48 194

Stats at Lv 40

HP Atk Spd Def Res Total
5★- Adjusted for Skills 43 53 25 23 40 184
5★ Lv.40 43 39 25 23 40 170
4★ Lv.40 40 37 23 21 38 159
3★ Lv.40 39 35 22 20 36 152

Initial Stats (with Skills)

HP Atk Spd Def Res Total
5★ Lv.1 19 25 6 4 10 64
4★ Lv.1 18 20 5 3 10 56
3★ Lv.1 18 16 5 3 9 51

Stat Comparison of Similar Heroes

Hero
HP
Atk
Spd
Def
Res
Total
40 45 31 23 43 182
39 46 30 21 46 182
40 43 32 19 43 177
40 44 27 20 46 177
Riev Icon Riev
43 39 25 23 40 170
40 35 24 32 35 166
36 41 32 17 39 165
40 39 28 19 36 162
42 35 31 21 33 162
41 38 17 35 30 161
35 35 28 18 35 151
38 37 33 20 23 151

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

Riev Roles, Strengths, and Weaknesses

Riev Roles

Riev - Blood Beryl Roles
Close Physical AttackClose-Physical Ranged Physical AttackRanged-Physical Close Magic AttackClose-Magic Ranged Magic ImageRanged-Magic
Physical Wall ImagePhysical Wall Magic Wall ImageMagic Wall Effective ImageEffective Weapon Movement Assist ImageMovement Assist
Exclusive Skill ImageExclusive Skill No All Range Counterattack ImageAll-Range Counter RecoveryRecovery No Refresher ImageRefresher
No Legendary Hero ImageLegendary No Mythic Hero ImageMythic No Duo and Harmonized ImageDuo /
Harmonized
No Resplendent ImageResplendent

Riev 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.

Riev Strengths

Argent Aura Puts a Stop to Extra Movement Skills!

Riev's weapon has the following effects:

1 Accelerates his Special trigger.
2 Inflicts Atk/Spd/Def/Res-5 and【Stall】on enemy units with the lowest Spd and any allies they have within 2 spaces.
3 Grants Riev Atk/Res+6 during combat when his HP ≥ 75%

While the buffs and Special acceleration are great effects, what makes this tome truly powerful is the fact that any unit with an extra movement skill will be restricted to only 1 space.

Argent Aura Fallen Edelgard FEH Fire Emblem Heroes

Since Fallen Edelgard met the conditions for Armored Stride, she triggers Argent Aura's movement restriction effects. Because she is in proximity of her allies, her allies get their movement restricted too.

This hits skills such as Odd Tempest 3, Yuri's Honorable Blade, Legendary Sigurd's Holy-Knight Aura, and Fallen Edelgard's Armored Stride 3 which she heavily relies upon.

Riev Weaknesses

Low Defense

Riev suffers the same weakness as several other mages - his Def isn't very high so he has no way to retaliate if a physical damage melee unit decides to get up close and personal.

Should you Unlock Potential?

Should You Unlock Potential for this Hero? S Rank Icon

We Recommend You Unlock Potential for Riev - Blood Beryl!

We can say with confidence that you should use Unlock Potential to bring Riev - Blood Beryl from 4 Stars to 5 Stars. Riev - Blood Beryl is a very useful debuff attacker, so we recommend you Unlock Potential for Riev - Blood Beryl if your team lacks a strong debuff attacker.

Unlock Potential Tier List

Riev - List of Skills

Weapons

Skill Name Might Range Effect Learned At
4 2 No Effect 4★
6 2 No Effect 4★
9 2 No Effect 4★
14 2 Accelerates Special trigger (cooldown count-1). At start of turn, inflicts Atk/Spd/Def/Res-5 and 【Stall】on foes on the enemy team with the lowest Spd and any foes within 2 spaces of those foes. At start of combat, if foe's HP ≥ 75%, grants Atk/Res+6 to unit during combat.
【Stall】If unit has "unit can move 1 extra space," converts that effect into "restricts movement to 1 space" through its next action.
5★

Assists

This Hero has no Assist skills that can be learned.

Specials

Skill Name Effect Learned At
(Cooldown Count = 4) Boosts damage dealt by 50% of unit’s Res. 4★
(Cooldown Count = 4) Boosts damage dealt by 80% of unit’s Res. 5★

Passives

Skill Name Effect Learned At
At start of combat, if unit's HP = 100% or if 【Bonus】 is active on unit, grants Atk/Res+3 to unit during combat. 5★
At start of combat, if unit's HP = 100% or if 【Bonus】 is active on unit, grants Atk/Res+4 to unit during combat. 5★
At start of combat, if unit's HP = 100% or if 【Bonus】 is active on unit, grants Atk/Res+5 to unit during combat. 5★
If unit initiates attack, foes within 2 spaces of target take 3 damage after combat. 5★
If unit initiates attack, foes within 2 spaces of target take 5 damage after combat. 5★
If unit initiates attack, foes within 2 spaces of target take 7 damage after combat. 5★

Riev as a Source Hero

Riev Avatar

Value of Skills ★★★☆☆

Riev most notably can be used to inherit Atk/Res Ideal 3, though being a free unit, he is also a good, reliable source for Glacies and Savage Blow 3.

As he can be obtained via Grails, he's a very useful fodder unit in a pinch.

How to Get Riev / Illustrations / Voice Actor / Quotes

How to Get Riev

Obtain through a Grand Hero Battle

Riev 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)
Bill Butts
Illustrator Daisuke Izuka
Appears In

Illustration

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