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Radiant Aether

From Fire Emblem Wiki, your source on Fire Emblem information. By fans, for fans.
Radiant Aether

Is feh skill special.png
Icon used by Radiant Aether in Heroes.

During combat, treats foe's Def/Res as if reduced by 50%. Restores HP = 50% of damage dealt.





Radiant Aether (Japanese: 蒼の天空 Blue Heavens) is a special skill which debuted in Fire Emblem Heroes and is the personal skill of Ike in his Radiant Dawn and Valentine's Day incarnations. Radiant Aether allows the user's attack to bypass 50% of the target's Defense or Resistance, and heal the user for half of the damage dealt. Radiant Aether can be considered an even stronger variation of the Heroes iteration of Aether despite that skill not being a prerequisite, having an identical effect to Aether with a faster cooldown charge. Radiant Aether cannot be passed to other units through skill inheritance, making it exclusive to the Legendary Hero and Valentine's Day incarnations of Ike.


Game Icon Effect Activation Capacity Notes
Heroes Is feh skill special.png Treats the target as if it has a 50% penalty to defense and resistance during the strike, and restores (damage dealt / 2) HP to the user. -- -- Cooldown: 4
Cost: 500 SP
Cannot be inherited to other units.
Is feh skill special.png At start of user's first phase, greatly accelerates Special trigger (cooldown count-2).
Treats the target as if it has a 50% penalty to defense and resistance during the strike, and restores (damage dealt / 2) HP to the user.
-- -- Cooldown: 4
Cost: 500 SP
Cannot be inherited to other units.



Units Ike: Close-Knit SiblingsIke: Stalwart HeartIke: Vanguard Legend


  • This skill's connection to Ike stems from the fact that he is the first character to have Aether in the series.

Etymology and other languages

Names, etymology and in other regions
Language Name Definition, etymology and notes

Radiant Aether

Aether is the Latin word for "sky" or "the heavens"; traditionally, "aether" or "ether" was a classical element defined as the substance of the universe beyond Earth, i.e. space. The "Radiant" prefix most likely comes from Ike's title as the "Radiant Hero".



Blue Heavens


Éter fulgurante

Shining ether


Éther radieux

Radiant ether


Strahlender Aithir

Radiant Ether


Etere fiammante

Flaming ether


Éter radiante

Radiant ether

Traditional Chinese


Deep blue sky


See also

  • Aether, the normal form of this skill.
Special skills in Heroes
Area-of-effect skills Blazing FlameBlazing LightBlazing ThunderBlazing WindGifted MagicGrowing FlameGrowing LightGrowing ThunderGrowing WindRising FlameRising LightRising ThunderRising Wind
Defensive skills AegisBucklerEscutcheonHoly VestmentsIce MirrorLife UnendingMiracleNegating FangPaviseSacred Cowl
Healing skills AetherDaylightHeavenly LightImbueMayhem AetherNoontimeOpen the FutureRadiant AetherRighteous WindSol
Offensive skills AetherAstraBlack LunaBlue FlameBonfireBrutal ShellChilling WindDraconic AuraDragon FangDragon GazeFire EmblemGlaciesGlimmerGlowing EmberHero's BloodHoly-Knight AuraIcebergIgnisImperial AstraLethalityLunaLunar FlashMayhem AetherMoonbowNew MoonNight SkyOpen the FutureRadiant AetherRegnal AstraReprisalRetributionRighteous WindRuptured SkySeiðr ShellShining EmblemSiriusSublime HeavenTwin BladesVengeanceVital Astra
Staff specials Deluge BalmEarthfire BalmEarthwater BalmFireflood BalmHeavenly LightImbueKindled-Fire BalmSolid-Earth BalmStill-Water BalmSwift-Winds BalmWindfire Balm
Miscellaneous skills GaleforceNjörun's ZealRequiem DanceUmbra BlastUmbra CalamityUmbra Eruption