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Tome of Reason

From Fire Emblem Wiki, your source on Fire Emblem information. By fans, for fans.
Tome of Reason

Is feh tome of reason open.png
The Tome of Reason as it appears in Heroes.

Type

Green tome

Wielder(s)

Lugh

First game

Heroes

Tome of Reason (Japanese: 純理の書 book of pure reason) is a weapon skill in the green tome category which debuted in Fire Emblem Heroes; it is a personal weapon of Lugh. Tome of Reason boosts the defense and resistance of its user and their nearby allies, and boosts all its user's stats when their HP is not low.

Stats

Game Icon Type Might Range SP cost Refine cost Prerequisites Unusable by Inheritable Other effects and notes
Heroes
(refine: Unrefined)
Is feh skill weapon.png Green tomes 14 2 400 -- -- -- If user is within 2 spaces of an ally at start of turn, grants +6 each to defense and resistance of user and allies within 2 spaces for 1 turn.
If user's HP ≥ 25% at start of combat, grants +4 each to user's attack, speed, defense, and resistance during combat.
Heroes
(refine: +Effect)
Is feh wpn tome of reason refined.png Green tomes 14 2 400 500 Arena Medal
200 Divine Dew
-- -- If user is within 2 spaces of an ally at start of turn, grants +6 each to defense and resistance of user and allies within 2 spaces for 1 turn.
If user's HP ≥ 25% at start of combat, grants +4 each to user's attack, speed, defense, and resistance during combat.
If user initiates combat or is within 2 spaces of an ally, grants +4 each to user's attack, speed, defense, and resistance during combat and inflicts −⁠([total bonuses on user's defense and resistance] × 60%) each to foe's attack and resistance during combat.
Heroes
(refine: +Atk)
Is feh wpn atk refined.png Green tomes 15 2 400 500 Arena Medal
200 Divine Dew
-- -- If user is within 2 spaces of an ally at start of turn, grants +6 each to defense and resistance of user and allies within 2 spaces for 1 turn.
If user's HP ≥ 25% at start of combat, grants +4 each to user's attack, speed, defense, and resistance during combat.
Grants +2 HP.
Heroes
(refine: +Spd)
Is feh wpn spd refined.png Green tomes 14 2 400 500 Arena Medal
200 Divine Dew
-- -- If user is within 2 spaces of an ally at start of turn, grants +6 each to defense and resistance of user and allies within 2 spaces for 1 turn.
If user's HP ≥ 25% at start of combat, grants +4 each to user's attack, speed, defense, and resistance during combat.
Grants +2 HP and +2 speed.
Heroes
(refine: +Def)
Is feh wpn def refined.png Green tomes 14 2 400 500 Arena Medal
200 Divine Dew
-- -- If user is within 2 spaces of an ally at start of turn, grants +6 each to defense and resistance of user and allies within 2 spaces for 1 turn.
If user's HP ≥ 25% at start of combat, grants +4 each to user's attack, speed, defense, and resistance during combat.
Grants +2 HP and +3 defense.
Heroes
(refine: +Res)
Is feh wpn res refined.png Green tomes 14 2 400 500 Arena Medal
200 Divine Dew
-- -- If user is within 2 spaces of an ally at start of turn, grants +6 each to defense and resistance of user and allies within 2 spaces for 1 turn.
If user's HP ≥ 25% at start of combat, grants +4 each to user's attack, speed, defense, and resistance during combat.
Grants +2 HP and +3 resistance.

Availability

Heroes

Method Data
Unit (★★★★★) Lugh: Anima Child

Flavor text

Game Text
(English)
Text
(Japanese)
Heroes
At start of turn, if unit is within 2 spaces of an
ally, grants Def/Res+6 to unit and allies within
2 spaces for 1 turn. At start of combat, if unit's
HP ≥ 25%, grants Atk/Spd/Def/Res+4 during
combat.
ターン開始時、周囲2マス以内に味方がいる時、
自分と周囲2マス以内の味方の守備、魔防+6(1ターン)

戦闘開始時、自身のHPが25%以上なら、
戦闘中、攻撃、速さ、守備、魔防+4
Heroes
(Refined: +effect)
If unit initiates combat or is within 2 spaces of
an ally, grants Atk/Spd/Def/Res+4 to unit during
combat, and inflicts penalty on foe's Atk/Res
= 60% of total bonuses on unit's Def and Res
during combat.
自分から攻撃した時、または、
周囲2マス以内に味方がいる時、
戦闘中、攻撃、速さ、守備、魔防+4、
かつ、
自分が強化を受けていれば、
戦闘中、敵の攻撃、魔防が
自分が受けている守備と魔防の強化の合計値の
60%だけ減少

Etymology and other languages

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

Tome of Reason

--

Japanese

純理の書

Book of pure reason

Spanish

Grimorio cordura

Reason grimoire

French

Tome de raison

Tome of reason

German

Buch der Ratio

Book of Reason

Italian

Tomo assennato

Wise tome

Portuguese

Tomo racional

Rational tome

Traditional Chinese

純理之書

Book of pure reason

Gallery

Green tome skills in Heroes
Basic green tome skills ElwindRexcaliburWind
Green tome skills with secondary effects Arc. Caliburnus BuoyboardDancer's RingGreen EggGreen GiftGronnbladeGronnbloomsGronndeerGronnfoxGronnowlGronnrabbitGronnravenGronnserpentGronnvultureGronnwolfHibiscus TomeMadness FlaskMelon FloatPeppy CanePlegian TorchSandwiches!Snow GlobeSpectral TomeTeatime SetTeacake TowerUmbra Burst
Regalia and personal green tome skills Amity BloomsArch-Sage TomeBewitching TomeBlizzardBlood TomeBond of the ÁlfarBook of ShadowsCaring ConchChaos ManifestCharging HornCrow's CrystalDark ExcaliburDancing FlamesDivine DraughtDivine NagaÉlivágarEreshkigalExcaliburExotic Fruit JuiceFaded Paper FanFlower of SorrowForsetiGiga ExcaliburGolden CurseGrafcaliburGrim BrokkrHeiðrHeired ForsetiHristÍfingrInscribed TomeIris's TomeJade BreidablikJoyous TomeKörmtLight of DawnMagic RabbitsMaster's TacticsMorph FimbulvetrMuninn's EggNagaNifl FrostflowersNinjutsu ScrollsObsessive CurseProfessorial TextSaintly SeraphimSeiðrTactical GaleTender ExcaliburTender VesselThunderheadTiger SpiritTome of LuxuriesTome of ReasonTome of OrderTome of ReglayVafþrúðnirVeðrfölnir's EggWind's BrandWinds of ChangeWinds of SilesseWindy War Tome