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Fire Emblem Heroes (FEH)
Young Leo Builds and Best IVs
★ Latest Banners - New Heroes: Harmonized CYL Ike, Lyn
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This is a ranking page for the hero Leo - Dark Sprout 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 Young Leo.
| Heroes With the Same Name | |
|---|---|
 Young Leo
|
|
List of Contents
| Special Heroes - Precious Siblings Featured Heroes | |||
|---|---|---|---|
| Young Leo [9.0/10] |
 Young Corrin (M)[9.5/10] |
 Young Camilla[9.9/10] |
 Young Elise[9.0/10] |
Young Leo Rating and Basic Information
| Overall Rating | 9.0/10 |
|---|---|
| Reroll Ranking (excluding Inherit Skill) |
A (▶Reroll Ranking) |
| Ranking (including Inherit Skill) |
A (▶FEH Tier List) |
Leo - Dark Sprout: Basic Information
| Color / Weapon Type / Move Type | |
|---|---|
| Rarity | |
| What Kind of Character Are They? | ・Tome of Dusk grants Leo an extra action after a Rally or movement Assist, grants Special cooldown reduction and inflicts Sabotage and Gravity onto foes after each action, grants Leo bonus stats, bonus true damage, and 50% damage reduction piercing. |
Young Leo Skills at 5★
|
Might: 14 Range: 2 Enables 【Canto (Rem.; Min 1)】. Accelerates Special trigger (cooldown count-1). If a Rally or movement Assist skill is used by unit, grants another action to unit (once per turn). After unit acts (if Canto triggers, after Canto), grants Special cooldown count-1 to unit, and also, if the number of times unit has acted on the current turn (not counting Canto) ≤ 2, for foes with Res < unit's Res+5, triggers the following effects based on the foe's position: if foe is within 3 rows or 3 columns centered on unit, inflicts Atk/Res-7 and 【Sabotage】 on foe; if foe is in cardinal directions of unit, also inflicts 【Gravity】 on foe (all effects are inflicted through foes' next actions). At start of combat, if unit's HP ≥ 25%, grants bonus to unit's Atk/Spd/Def/Res = number of foes within 3 rows or 3 columns centered on unit × 3, + 5 (max 14), deals damage = 20% of unit's Res (including 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). |
|
Range: 1 Moves adjacent ally to opposite side of unit. |
|
Cooldown Count = 4 Before combat this unit initiates, foes in an area near target take damage equal to 1. 5x (unit’s Atk minus foe’s Def or Res). |
|
Grants Atk/Res+8. Inflicts Def-8. At start of player phase or enemy phase, neutralizes 【Panic】 and any penalties to unit's Atk/Res that take effect on unit at this time. |
|
Inflicts Atk/Res-4 on foe during combat. If a movement Assist skill (like Reposition, Shove, Pivot, etc.) is used by unit or targets unit, inflicts 【Exposure】 on closest foes within 5 spaces of both unit and target ally or unit and targeting ally after movement and foes within 2 spaces of those foes through their next actions. Inflicts Atk/Res-5 on foes on the map with the 【Exposure】 effect active and neutralizes bonuses to Atk/Res for those foes during combat. |
|
At start of turn, if unit is within 2 spaces of an ally, grants Atk/Res+6 and 【Incited】 to unit and allies within 2 spaces of unit for 1 turn. Grants bonus to unit's Atk/Res during combat = number of allies on the map with the 【Incited】 effect + 2 (excluding unit; max 5). |
Young Leo Best IVs
Recommended IVs
| Stat | Superboon/Superbane | IV Recommendation |
|---|---|---|
| HP (18) |
|
★★★☆☆ |
| Atk (10) |
|
★★★★★ |
| Spd (5) |
|
★★☆☆☆ |
| Def (3) |
|
★☆☆☆☆ |
| 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.
+Atk / -Def
The best IVs for Young Leo are +Atk and -Def. Young Leo's Atk is among the highest in the game at base 49, and as a unit with middling Spd, increasing his damage output is a must.
Leo's Def is a clear dump stat and can be safely taken as a bane.
+Atk for a +10 merge
We recommend a +Atk IV when merging Young Leo up to +10 for similar reasons above.
Young Leo Best Builds
General Use / Budget Young Leo
| HOT | |
|---|---|
 ：
-
|
 ：
-
|
| Updated on 04/04/2025 | |
How to Use, Explanation
Young Leo's base kit already comes complete with every skill slot occupied by a skill that is useful for his role.
Young Leo Stats
Stat Rankings
| Neutral Stats at Lv. 40 (5★) | ||
|---|---|---|
| 180 | ||
| HP | 
40 |
Rank: 516/1322 |
| Atk | 
49 |
Rank: 3/1322 |
| Spd | 
27 |
Rank: 922/1322 |
| Def | 
16 |
Rank: 1155/1322 |
| Res | 
48 |
Rank: 5/1322 |
Stat Values
Lv 40+10 Stats (5★)
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| +10 Merges W/ Skill Bonuses | 45 | 68 | 31 | 20 | 53 | 217 | Lv.40 +10 | 45 | 54 | 31 | 20 | 53 | 203 |
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| +HP Lv.40 +10 | 47 | 53 | 31 | 20 | 52 | 203 |
| +Atk Lv.40 +10 | 44 | 57 | 31 | 20 | 52 | 204 |
| +Spd Lv.40 +10 | 44 | 53 | 34 | 20 | 52 | 203 |
| +Def Lv.40 +10 | 44 | 53 | 31 | 23 | 52 | 203 |
| +Res Lv.40 +10 | 44 | 53 | 31 | 20 | 55 | 203 |
Stats at Lv 40
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| 5★- Adjusted for Skills | 40 | 63 | 27 | 16 | 48 | 194 |
| 5★ Lv.40 | 40 | 49 | 27 | 16 | 48 | 180 |
Initial Stats (with Skills)
| HP | Atk | Spd | Def | Res | Total | |
|---|---|---|---|---|---|---|
| 5★ Lv.1 | 18 | 24 | 5 | 3 | 13 | 63 |
Stat Comparison of Similar Heroes
| Hero |
HP |
Atk |
Spd |
Def |
Res |
Total |
|---|---|---|---|---|---|---|
|
Young Leo
|
40 | 49 | 27 | 16 | 48 | 180 |
| 40 | 48 | 28 | 16 | 48 | 180 | |
| 38 | 46 | 47 | 21 | 27 | 179 | |
| 45 | 46 | 47 | 20 | 21 | 179 | |
| 40 | 46 | 47 | 24 | 17 | 174 | |
| 40 | 44 | 47 | 17 | 26 | 174 | |
| 40 | 47 | 24 | 16 | 47 | 174 | |
| 40 | 45 | 46 | 20 | 22 | 173 | |
| 37 | 44 | 45 | 16 | 27 | 169 | |
| 38 | 42 | 45 | 19 | 25 | 169 | |
| 40 | 46 | 35 | 23 | 24 | 168 | |
| 40 | 41 | 25 | 18 | 38 | 162 | |
| 41 | 36 | 27 | 20 | 34 | 158 | |
| 39 | 39 | 25 | 30 | 25 | 158 | |
| 39 | 42 | 21 | 16 | 40 | 158 | |
| 38 | 39 | 25 | 17 | 38 | 157 | |
| 39 | 37 | 40 | 24 | 17 | 157 | |
| 35 | 30 | 33 | 17 | 30 | 145 | |
| 39 | 29 | 22 | 25 | 30 | 145 | |
| 36 | 31 | 35 | 20 | 22 | 144 |
Note: Stats bonuses from skills are not taken into account.
Young Leo Roles, Strengths, and Weaknesses
Young Leo Roles
Young Leo 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.
Young Leo Strengths
Tome of Dusk grants extra actions and inflicts penalties onto foes
Young Leo's exclusive weapon Tome of Dusk has built-in 【Canto (Rem.; Min 1)】 and grants him an extra action if he uses a Rally or movement Assist once per turn.
After each of Young Leo's actions, Tome of Dusk grants him Special cooldown count -1 and inflicts various penalties on foes based on winning a Res check:
- if foe is within 3 rows or 3 columns centered on unit, inflicts Atk/Res-7 and 【Sabotage】 on foe
- if foe is in cardinal directions of unit, inflicts 【Gravity】 on foe
In combat, Tome of Dusk grants Young Leo up to Atk/Spd/Def/Res+14, true damage equal to 20% of his Res (including area-of-effect Specials), and 50% damage reduction piercing.
Tome of Dusk has both offensive and defensive effects, making Young Leo a versatile unit that can perform either role for the team.
Young Leo Weaknesses
Mid Spd and Low Def
Young Leo's base 16 Def leaves him vulnerable to physical damage, and his base 27 Spd won't protect him against fast metagame units.
Keep Leo away from fast foes, especially those that deal physical damage, to ensure his survival.
Weak to Cavalry Effective Weapons
Young Leo takes 1.5x damage from cavalry-effective weapons like Thani or Binding Reginleif, 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!
Should you Unlock Potential?
| Should You Unlock Potential for this Hero? | Cannot Unlock Potential |
|---|
Leo - Dark Sprout Only Appears as a 5 Star Hero!
Leo - Dark Sprout only appears as a 5 Star Hero. We will include whether or not you should Unlock Potential for Leo - Dark Sprout if a 4 Star version is released!
Young Leo - List of Skills
Weapons
| Skill Name | Might | Range | Effect | Learned At |
|---|---|---|---|---|
| 4 | 2 | No Effect | 5★ | |
| 6 | 2 | No Effect | 5★ | |
| 9 | 2 | No Effect | 5★ | |
| 14 | 2 | Enables 【Canto (Rem.; Min 1)】. Accelerates Special trigger (cooldown count-1). If a Rally or movement Assist skill is used by unit, grants another action to unit (once per turn). After unit acts (if Canto triggers, after Canto), grants Special cooldown count-1 to unit, and also, if the number of times unit has acted on the current turn (not counting Canto) ≤ 2, for foes with Res < unit's Res+5, triggers the following effects based on the foe's position: if foe is within 3 rows or 3 columns centered on unit, inflicts Atk/Res-7 and 【Sabotage】 on foe; if foe is in cardinal directions of unit, also inflicts 【Gravity】 on foe (all effects are inflicted through foes' next actions). At start of combat, if unit's HP ≥ 25%, grants bonus to unit's Atk/Spd/Def/Res = number of foes within 3 rows or 3 columns centered on unit × 3, + 5 (max 14), deals damage = 20% of unit's Res (including 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). |
5★ |
Assists
| Skill Name | Range | Effect | Learned At |
|---|---|---|---|
| 1 | Moves adjacent ally to opposite side of unit. | 5★ |
Specials
| Skill Name | Effect | Learned At |
|---|---|---|
| (Cooldown Count = 4) Before combat this unit initiates, foes in an area near target take damage equal to (unit’s Atk minus foe’s Def or Res). | 5★ | |
| (Cooldown Count = 4) Before combat this unit initiates, foes in an area near target take damage equal to 1. 5x (unit’s Atk minus foe’s Def or Res). | 5★ |
Passives
| Skill Name | Effect | Learned At |
|---|---|---|
| Grants Atk/Res+3. Inflicts Def-3. | 5★ | |
| Grants Atk/Res+4. Inflicts Def-4. | 5★ | |
| Grants Atk/Res+5. Inflicts Def-5. | 5★ | |
| Grants Atk/Res+8. Inflicts Def-8. At start of player phase or enemy phase, neutralizes 【Panic】 and any penalties to unit's Atk/Res that take effect on unit at this time. |
5★ | |
| If a movement Assist skill (like Reposition, Shove, Pivot, etc.) is used by unit or target's unit, inflicts Atk/Res-2 on nearest foes within 4 spaces of both unit and target through their next actions. | 5★ | |
| If a movement Assist skill (like Reposition, Shove, Pivot, etc.) is used by unit or target's unit, inflicts Atk/Res-4 on nearest foes within 4 spaces of both unit and target through their next actions. | 5★ | |
| If a movement Assist skill (like Reposition, Shove, Pivot, etc.) is used by unit or target's unit, inflicts Atk/Res-6 on nearest foes within 4 spaces of both unit and target through their next actions. | 5★ | |
| Inflicts Atk/Res-4 on foe during combat. If a movement Assist skill (like Reposition, Shove, Pivot, etc.) is used by unit or targets unit, inflicts 【Exposure】 on closest foes within 5 spaces of both unit and target ally or unit and targeting ally after movement and foes within 2 spaces of those foes through their next actions. Inflicts Atk/Res-5 on foes on the map with the 【Exposure】 effect active and neutralizes bonuses to Atk/Res for those foes during combat. |
5★ | |
| At start of turn, grants Res+2 to adjacent allies for 1 turn. | 5★ | |
| At start of turn, grants Res+3 to adjacent allies for 1 turn. | 5★ | |
| At start of turn, grants Res+4 to adjacent allies for 1 turn. | 5★ | |
| At start of turn, if unit is within 2 spaces of an ally, grants Atk/Res+6 and 【Incited】 to unit and allies within 2 spaces of unit for 1 turn. Grants bonus to unit's Atk/Res during combat = number of allies on the map with the 【Incited】 effect + 2 (excluding unit; max 5). |
5★ |
Young Leo as a Source Hero
| Value of Skills | ★★★★★ |
|---|
Young Leo has Crystalline Water, Atk/Res Detect, and A/R Incite Hone as inheritable options.
These skills all work together. If possible, acquire multiple skills with one copy of Leo by inheriting the prerequisite skills first.
| List of Source Heroes | The Best Fodder Units |
Community Feedback
How would you rate Young Leo?
If you have feedback about this hero page, let us know in the comments section below!
How to Get Young Leo / Illustrations / Voice Actor / Quotes
How to Get Young Leo
Obtained through a Special Summoning Event!
Young Leo is a limited time Hero who can be pulled from a Special Heroes Summoning Event. They do not appear in regular summons.
| Event Name | Focus |
|---|---|
 Double Special Heroes November 2025 Focus Summon |
Young Leo
Starts：11/20/2025 Ends：12/03/2025 |
Current Focuses and Which You Should Pull From
Voice Actor and Illustrator Information
| Voice Actor (English) |
- |
|---|---|
| Illustrator | Tobi |
| Appears In |
Illustration
 |
 |
 |
 |
FEH: Related Guides
Focus: Double Special Heroes November 2025
| Heroes from Focus - Double Special Heroes November 2025 | |||
|---|---|---|---|
 Spring Veyle[9.5/10] |
Young Leo [9.0/10] |
 Summer Lapis[9.0/10] |
 Summer Hapi[9.5/10] |
 Jehanna Marisa[9.5/10] |
 Groom Seliph[9.5/10] |
 Summer Celica[9.0/10] |
 Tea Veronica[9.0/10] |
See All Red Heroes
▶︎Return to the Red Heroes Page
All Types of Red Weapons
| Close-Range | Ranged |
|---|---|
 Sword |
 Red Tome |
 Red Breath |
 Red Dagger |
 Red Beast |
 Red Bow |
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Young Leo Builds and Best IVs
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