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★ Latest Banner - New Heroes: Attuned Alm & Rearmed Nuibaba
☆ New Units - Nuibaba, Nomah, Jesse, Attuned Alm
☆ Free Units - Jedah
Here you can see how to get Earthfire Boost 3, a Passive A skill in Fire Emblem Heroes (FEH). Check out Earthfire Boost 3, Earthfire Boost 3's effects, units with Earthfire Boost 3, as well as Inherit Skill Information!
List of Contents
| Skill |
 Earthfire Boost 3 |
||
|---|---|---|---|
| Type | |||
| Effect | Grants HP+5. At start of combat, if unit's HP ≥ 50%, grants Atk/Def+7 to unit during combat, and also, if unit is within 2 spaces of an ally with HP > 50%, inflicts Special cooldown charge -1 on foe per attack during combat (only highest value applied; does not stack). | ||
| Required SP | 300 (450 if inherited) | ||
| Sacred Seal | |||
 Earth Boost 3
|
 Earth Boost 2
|
 Earth Boost 1
|
|
Earthfire Boost 3
|
 Earthwind Boost 3
|
| Rating | 9.0/10.0 | Ranking |
|
|---|
| Inheritable? | Move Type that can Inherit this Skill |
|---|---|
| Yes | All Move Types |
| Weapon Type that can Inherit this Skill | |
|
All Weapon Types
|
|
| Hero Name | Learns At |
|---|---|
 Valentine's Ephraim
|
5★ |
 Halloween Nah
|
5★ |
 Þjazi
|
5★ |
This skill is present in builds for the heroes listed below. Check out their pages to find out how to use this skill with these heroes!
 Weapon Skills |
 Assist Skills |
 Special Skills |
 Passive A Skills |
 Passive B Skills |
 Passive C Skills |
 Sacred Seals |
 Attuned Skills |
 Emblems |
▶︎Return to the FEH Guide Wiki Top Page
 IV Checker |
 Hero Tier List |
 Rerolling |
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 Beginner's Guide |
 All FEH Heroes |
 Skills and Sacred Seals |
 Weapon Refinery |
Earthfire Boost 3: Best Fodder, Best Units to Inherit
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![inZOI Review [Early Access] | Sims 4 Better Look Out](https://img.game8.co/4141736/b02862441b9919c9b3e689434c7d32e1.jpeg/thumb)
They really wanted Marni to have this skill, she’s listed 4 times lmao