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This is a ranking page for the hero Arval - Cycle Keeper 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 Arval.
List of Contents
| Focus - Legendary & Mythic Hero Remix: Legendary Deirdre Featured Heroes | |||
|---|---|---|---|
Legendary Lilina[9.0/10] |
Legendary Sigurd[8.5/10] |
Legendary Deirdre[9.0/10] |
Aided Reginn[9.0/10] |
Legendary Edelgard[8.5/10] |
Legendary Byleth (M)[8.5/10] |
Mythic Medeus[9.0/10] |
Arval[8.5/10] |

| Overall Rating | 8.5/10 |
|---|---|
| Reroll Ranking (excluding Inherit Skill) |
B (▶Reroll Ranking) |
| Ranking (including Inherit Skill) |
B (▶FEH Tier List) |
| Color / Weapon Type / Move Type | |
|---|---|
| Rarity | |
| What Kind of Character Are They? | ・ Rite of Souls inflicts 【Guard】, 【Discord】, and 【Res Shackle】 on foes, grants stat bonuses, true damage, true DR, defensive Tempo, and denies foe's follow-up attack. ・ Duality+ grants Special cooldown charge -1 to Arval and nearby allies, grants Arval bonus Atk/Res, true damage, true DR, color advantage against red/blue/green foes, and a guaranteed follow-up attack. |
|
Might: 14 Range: 2 Accelerates Special trigger (cooldown count-1). At start of turn, inflicts 【Guard】 on foes within 3 rows or 3 columns centered on unit with Res < unit's Res. If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+5 to unit during combat, deals damage = 20% of unit's Res (including when dealing damage with a Special triggered before combat), and foe cannot make a follow-up attack. |
|
Cooldown Count = 4 Boosts damage dealt by 80% of unit’s Res. |
|
Grants Atk/Res+10. Grants weapon-triangle advantage against and inflicts weapon-triangle disadvantage on red, blue, and green foes during combat. Neutralizes effects that boost values along with weapon-triangle advantage or reduce values along with weapon-triangle disadvantage (Triangle Adept) on unit and foe. At start of turn, grants Special cooldown count-1 to unit and allies within 2 spaces of unit. Unit makes a guaranteed follow-up attack, deals +7 damage (including area-of-effect Specials; excluding Røkkr area-of-effect Specials), and reduces damage from foe's attacks by 7 during combat (excluding area-of-effect Specials). |
|
At start of player phase or enemy phase, inflicts Atk/Res-7, 【Sabotage】, and 【Schism】 on foes with Res < unit's Res and that are within 2 spaces of another foe through their next actions. After start-of-turn skills trigger on unit's player phase, if the number of foes with the 【Sabotage】 effect active on the map ≥ 2, grants 【Canto (1)】 to unit for 1 turn. Inflicts Atk/Res-4 on foe and deals damage = 20% of unit's Res during combat (excluding area-of-effect Specials). |
|
At start of turn, if unit is within 2 spaces of an ally, grants Atk/Res+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/Res+3 to unit during combat. |
| Stat | Superboon/Superbane | IV Recommendation |
|---|---|---|
| HP (18) |
|
★★★☆☆ |
| Atk (11) |
|
★★★★★ |
| Spd (5) |
|
★★☆☆☆ |
| Def (4) |
|
★★☆☆☆ |
| Res (13) |
|
★★★★★ |
◯ = 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.
The best IVs for Arval are +Res and -Def. A Res superboon improves their performance as a magic wall, makes Rite of Souls' Res check more reliable, and also increases their damage output through the true damage effect.
Their Def is below average and is prone to being defeated by physical attackers. Thus, it is a safe bane to take.
We recommend +Res when merging Arval up to +10 for similar reasons above. Arval's performance relies on a Res check, and improving their Res makes him more reliable.
| HOT | |
|---|---|
|
|
|
This build aims to have Arval as a magic tank while also providing support at the same time.
| Exclusive Weapon Effect from Refining (Special Effect Type) | |
|---|---|
| SP: 400 | |
| Might: 14 Range: 2 HP: Accelerates Special trigger (cooldown count-1). At start of player phase or enemy phase, inflicts 【Guard】, 【Discord】, and 【Res Shackle】 on foes within 3 rows or 3 columns centered on unit with Res < unit's Res+5 through their next actions. If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+5 to unit, deals damage = 20% of unit's Res (including area-of-effect Specials), foe cannot make a follow-up attack, and neutralizes effects that grant "Special cooldown charge +X" to foe during combat. If unit initiates combat or is within 2 spaces of an ally, grants bonus to unit's Atk/Spd/Def/Res = 5 + 10% of unit's Res at start of combat, reduces damage from foe's attacks by 20% of unit's Res (excluding area-of-effect Specials), and reduces the percentage of foe's non-Special "reduce damage by X%" skills by 50% during combat (excluding area-of-effect Specials). |
|
Refined Rite of Souls inflicts 【Guard】, 【Discord】, and 【Res Shackle】 on foes within 3 rows or 3 columns upon winning a Res check, providing long distance support that is easy to meet with Arval's stat spread.
In combat, refined Rite of Souls grants Arval Atk/Spd/Def/Res+10, bonus Atk/Spd/Def/Res equal to 10% of Arval's Res, bonus true damage and true damage reduction equal to 20% of Res, 50% damage reduction piercing, denies foe's follow-up attack, and defensive Tempo.
Refined Rite of Souls is a useful weapon applying relevant debuffs onto foes from a long distance while also improving Arval's combat with its various effects.
| Neutral Stats at Lv. 40 (5★) | ||
|---|---|---|
| 177 | ||
| HP |
40 |
Rank: 489/1317 |
| Atk |
44 |
Rank: 152/1317 |
| Spd |
27 |
Rank: 880/1317 |
| Def |
23 |
Rank: 826/1317 |
| Res |
43 |
Rank: 47/1317 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| +10 Merges W/ Skill Bonuses | 45 | 72 | 31 | 27 | 57 | 232 | Lv.40 +10 | 45 | 49 | 31 | 27 | 48 | 200 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| +HP Lv.40 +10 | 47 | 48 | 31 | 27 | 47 | 200 |
| +Atk Lv.40 +10 | 44 | 51 | 31 | 27 | 47 | 200 |
| +Spd Lv.40 +10 | 44 | 48 | 34 | 27 | 47 | 200 |
| +Def Lv.40 +10 | 44 | 48 | 31 | 31 | 47 | 201 |
| +Res Lv.40 +10 | 44 | 48 | 31 | 27 | 51 | 201 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| 5★- Adjusted for Skills | 40 | 67 | 27 | 23 | 52 | 209 |
| 5★ Lv.40 | 40 | 44 | 27 | 23 | 43 | 177 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| 5★ Lv.1 | 18 | 34 | 5 | 4 | 22 | 83 |
| Hero |
HP |
Atk |
Spd |
Def |
Res |
Total |
|---|---|---|---|---|---|---|
| 40 | 47 | 49 | 30 | 28 | 194 | |
| 40 | 49 | 30 | 20 | 49 | 188 | |
| 40 | 49 | 17 | 33 | 49 | 188 | |
| 39 | 47 | 16 | 38 | 48 | 188 | |
| 37 | 47 | 35 | 21 | 48 | 188 | |
| 40 | 45 | 47 | 30 | 26 | 188 | |
| 42 | 47 | 49 | 30 | 17 | 185 | |
| 41 | 42 | 45 | 38 | 17 | 183 | |
| 40 | 47 | 16 | 32 | 47 | 182 | |
| 39 | 46 | 30 | 24 | 43 | 182 | |
| 42 | 41 | 16 | 39 | 42 | 180 | |
| 38 | 47 | 48 | 21 | 25 | 179 | |
| 40 | 48 | 47 | 20 | 24 | 179 | |
| 37 | 20 | 47 | 28 | 46 | 178 | |
| 37 | 39 | 45 | 16 | 40 | 177 | |
| 38 | 45 | 18 | 35 | 41 | 177 | |
|
|
40 | 44 | 27 | 23 | 43 | 177 |
| 40 | 42 | 16 | 42 | 37 | 177 | |
| 40 | 42 | 14 | 38 | 42 | 176 | |
| 37 | 45 | 47 | 27 | 18 | 174 | |
| 37 | 46 | 27 | 18 | 46 | 174 | |
| 39 | 41 | 43 | 26 | 24 | 173 | |
| 38 | 46 | 46 | 20 | 22 | 172 | |
| 38 | 42 | 42 | 23 | 26 | 171 | |
| 38 | 40 | 41 | 17 | 35 | 171 | |
| 38 | 42 | 31 | 19 | 41 | 171 | |
| 36 | 42 | 33 | 17 | 43 | 171 | |
| 36 | 42 | 34 | 16 | 43 | 171 | |
| 40 | 43 | 42 | 21 | 25 | 171 | |
| 41 | 35 | 35 | 28 | 28 | 167 | |
| 37 | 35 | 39 | 15 | 40 | 166 | |
| 47 | 30 | 34 | 25 | 30 | 166 | |
| 38 | 42 | 30 | 16 | 37 | 163 | |
| 38 | 42 | 40 | 19 | 23 | 162 | |
| 39 | 40 | 27 | 21 | 35 | 162 | |
| 39 | 39 | 20 | 19 | 38 | 155 |
Note: Stats bonuses from skills are not taken into account.
Arval is a ranged magic attacker (range = 2). Therefore, when not accounting for the Weapon Triangle, the amount of damage they deal will be equivalent to their Atk minus the foe's Res stat.

Arval's refined Rite of Souls inflicts 【Guard】, 【Discord】, and 【Res Shackle】 on foes within 3 rows or 3 columns upon winning a Res check, providing long distance support that is easy to meet with Arval's stat spread.
In combat, refined Rite of Souls grants Arval Atk/Spd/Def/Res+10, bonus Atk/Spd/Def/Res equal to 10% of Arval's Res, bonus true damage and true damage reduction equal to 20% of Res, 50% damage reduction piercing, denies foe's follow-up attack, and defensive Tempo.
Refined Rite of Souls is a useful weapon applying relevant debuffs onto foes from a long distance while also improving Arval's combat with its various effects.
Arval's exclusive A skill Duality+ has a unique effect which grants Arval weapon-triangle advantage against red, blue, and green foes, and disables skills that affect weapon-triangle calculations like Triangle Adept 3 and Cancel Affinity 3..
On top of the weapon-triangle effects, Duality+ also grants Arval a flat Atk/Res+9 with no drawbacks and grants Arval a guaranteed follow-up attack, +7 true damage and +7 true damage reduction during combat.
Duality+ also grants Special cooldown count -1 to Arval and nearby allies at the start of each turn, giving this skill a support element that it previously didn't have from its base version.
This skill makes matching up against Arval quite difficult, especially if there are no colorless units to face them directly in combat.
Arval's Def stat is only at a base 23, which leaves them vulnerable to physical damage attackers.
Keep them out of range of these units to ensure they remain alive.
| Should You Unlock Potential for this Hero? | Cannot Unlock Potential |
|---|
Arval - Cycle Keeper only appears as a 5 Star Hero. We will include whether or not you should Unlock Potential for Arval - Cycle Keeper if a 4 Star version is released!
| Skill Name | Might | Range | Effect | Learned At |
|---|---|---|---|---|
| 4 | 2 | No Effect | 5★ | |
| 6 | 2 | No Effect | 5★ | |
| 9 | 2 | No Effect | 5★ | |
| 14 | 2 | Accelerates Special trigger (cooldown count-1). At start of turn, inflicts 【Guard】 on foes within 3 rows or 3 columns centered on unit with Res < unit's Res. If unit initiates combat or is within 2 spaces of an ally, grants Atk/Spd/Def/Res+5 to unit during combat, deals damage = 20% of unit's Res (including when dealing damage with a Special triggered before combat), and foe cannot make a follow-up attack. | 5★ |
| This Hero has no Assist skills that can be learned. |
| Skill Name | Effect | Learned At |
|---|---|---|
| (Cooldown Count = 4) Boosts damage dealt by 50% of unit’s Res. | 5★ | |
| (Cooldown Count = 4) Boosts damage dealt by 80% of unit’s Res. | 5★ |
| Skill Name | Effect | Learned At |
|---|---|---|
| Grants Atk/Res+9. Grants weapon-triangle advantage against and inflicts weapon-triangle disadvantage on red, blue, and green foes during combat. Neutralizes effects that boost values along with weapon-triangle advantage or reduce values along with weapon-triangle disadvantage (Triangle Adept) on unit and foe. At start of combat, if unit's HP ≥ 25%, unit makes a guaranteed follow-up attack during combat. | 5★ | |
| Grants Atk/Res+10. Grants weapon-triangle advantage against and inflicts weapon-triangle disadvantage on red, blue, and green foes during combat. Neutralizes effects that boost values along with weapon-triangle advantage or reduce values along with weapon-triangle disadvantage (Triangle Adept) on unit and foe. At start of turn, grants Special cooldown count-1 to unit and allies within 2 spaces of unit. Unit makes a guaranteed follow-up attack, deals +7 damage (including area-of-effect Specials; excluding Røkkr area-of-effect Specials), and reduces damage from foe's attacks by 7 during combat (excluding area-of-effect Specials). |
5★ | |
| At start of turn, if any foe’s Res ≤ unit’s Res-3 and that foe is adjacent to another foe, inflicts Res-3 on that foe through its next action. | 5★ | |
| At start of turn, if any foe’s Res ≤ unit’s Res-3 and that foe is adjacent to another foe, inflicts Res-5 on that foe through its next action. | 5★ | |
| At start of turn, if any foe’s Res ≤ unit’s Res-3 and that foe is adjacent to another foe, inflicts Res-7 on that foe through its next action. | 5★ | |
| At start of player phase or enemy phase, inflicts Atk/Res-7, 【Sabotage】, and 【Schism】 on foes with Res < unit's Res and that are within 2 spaces of another foe through their next actions. After start-of-turn skills trigger on unit's player phase, if the number of foes with the 【Sabotage】 effect active on the map ≥ 2, grants 【Canto (1)】 to unit for 1 turn. Inflicts Atk/Res-4 on foe and deals damage = 20% of unit's Res during combat (excluding area-of-effect Specials). |
5★ | |
| Inflicts Atk/Res-1 on foe and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit during combat. | 5★ | |
| Inflicts Atk/Res-2 on foe and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit during combat. | 5★ | |
| Inflicts Atk/Res-3 on foe and neutralizes effects that grant "Special cooldown charge +X" to foe or inflict "Special cooldown charge -X" on unit during combat. | 5★ | |
| At start of turn, if unit is adjacent to an ally, grants Atk/Res+3 for 1 turn. | 5★ | |
| At start of turn, if unit is adjacent to an ally, grants Atk/Res+4 for 1 turn. | 5★ | |
| At start of turn, if unit is adjacent to an ally, grants Atk/Res+5 to unit for 1 turn. | 5★ | |
| At start of turn, if unit is within 2 spaces of an ally, grants Atk/Res+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/Res+3 to unit during combat. | 5★ |

| Value of Skills | ★★★★☆ |
|---|
Arval comes with Atk/Res Tempo 3 and Atk/Res Oath 4 as inheritance options.
Through pre-inheritance, it is possible to acquire both of these with one copy of Arval by inheriting Atk/Res Oath 3 first.
| List of Source Heroes | The Best Fodder Units |
If you have feedback about this hero page, let us know in the comments section below!
Arval is a limited time Hero who can be pulled from a Mythic Hero Summoning event. They do not appear in regular summons.
Note: Not currently a featured hero in any Summon events.
| Voice Actor (English) |
Melissa Hutchison |
|---|---|
| Illustrator | nijimaare |
| Appears In |
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| Heroes from Focus - Legendary & Mythic Hero Remix: Legendary Deirdre | |||
|---|---|---|---|
Legendary Lilina[9.0/10] |
Legendary Sigurd[8.5/10] |
Legendary Deirdre[9.0/10] |
Aided Reginn[9.0/10] |
Legendary Edelgard[8.5/10] |
Legendary Byleth (M)[8.5/10] |
Mythic Medeus[9.0/10] |
Arval[8.5/10] |
▶︎Return to the Colorless Heroes Page
| Close-Range | Ranged |
|---|---|
Colorless Breath |
Colorless Dagger |
Colorless Beast |
Colorless Bow |
Colorless Tome |
Staff |
Arval Builds and Best IVs



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