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Reason (理学 Rigaku) is a magical weapon skill introduced in Fire Emblem: Three Houses. Combat with these weapons involve fighting enemies using various spells. Sharpening Reason unlocks Reason Prowess.

OverviewEdit

Reason is the skill stat that governs the growth of a unit's offensive magic moveset, and as such, Reason acts as the combination of Anima magic (known in Fódlan as black magic) and dark magic. All Dark Reason magic have an idiosyncratic naming scheme where it includes a Greek letter, both of the upper and lowercase varieties, after the name of the spell.

Similar to Fire Emblem Gaiden and its remake, every character in Three Houses has a fixed spell list that they learn & use as they improve their Reason weapon stat via tutoring or by participating in live combat as either a combatant or as an Adjacent while having a black/dark spell equipped; e.g., all Byleths between players will always used the same spell list, as would other characters such as Shamir or Dorothea. Rather than having to buy tomes like in most previous titles or having an HP cost as it was in the Valentian games, every spell has a set number of usage per map. Characters replenish their spell count between maps. Certain magical classes can increase the number of usages of certain spells.

Annette has the Crest of Dominic, which allows her to occasionally conserve spell charges, allowing her to cast Reason Magic without consuming a use if it activates. Lysithea and Lorenz have the Crest of Gloucester, raising the Mt of their Reason attacks when it activates.

List of learnable Black MagicEdit

Name Mt Hit Crit Range Wt Lvl Use Description User(s)
Fire 3 90 0 1-2 3 E 10 Basic fire magic. Byleth, Edelgard, Ferdinand, Caspar, Linhardt, Dedue, Mercedes, Sylvain, Lorenz, Raphael, Leonie, Rhea, Flayn, Catherine, Alois
Bolganone 8 85 0 1~2 6 C 5 Advanced fire magic. Byleth, Edelgard, Ferdinand, Caspar, Linhardt, Dedue, Mercedes, Sylvain, Raphael, Leonie, Rhea, Manuela, Seteth, Catherine, Alois
Ragnarok 15 80 5 1~2 9 B 3 The highest tier of fire magic. Byleth, Dedue, Mercedes, Sylvain, Lorenz, Leonie, Rhea, Hanneman, Catherine
Thunder 4 80 5 1-2 4 E 8 Basic lighting magic. Byleth, Dimitri, Dorothea, Ferdinand, Bernadetta, Felix, Mercedes, Hilda, Manuela, Gilbert, Jeritza
Thoron 9 75 10 1~3 7 C 4 Advanced thunder magic. Dimitri, Dorothea, Ferdinand, Bernadetta, Felix, Ingrid, Hilda, Marianne, Hanneman, Gilbert, Jeritza
Bolting 12 65 15 3~10 18 B 2 The highest tier of lightning magic.
Cannot trigger follow-up attacks.
Hilda, Manuela
Wind 2 100 10 1-2 2 E 6 Basic wind magic. Claude, Petra, Linhardt, Ashe, Annette, Hanneman, Seteth, Flayn, Shamir, Cyril
Cutting Gale 7 95 10 1-2 5 C 6 Advanced wind magic. Claude, Linhardt, Ashe, Annette, Ignatz, Marianne, Seteth, Flayn, Cyril
Excalibur 11 100 15 1~2 8 B 4 The highest tier of wind magic.
Effective against Flying foes.
Claude, Linhardt, Annette, Seteth, Flayn
Blizzard 3 70 15 1~2 4 E 10 Basic ice magic. Bernadetta, Ingrid, Ignatz, Marianne, Shamir
Fimbulvetr 12 65 25 1~2 10 B 3 Advanced ice magic. Bernadetta, Ingrid, Ignatz, Marianne, Shamir
Sagittae 7 90 5 1-2 6 C 10 Magic arrows with a high Hit. Claude, Dorothea, Petra, Annette, Sylvain, Lorenz, Hanneman, Shamir
Meteor 10 80 0 3~10 19 B 1 Magic that also hits targets adjacent to the point of impact.
Cannot make follow-up attacks.
Dorothea, Hanneman
Agnea's Arrow 16 70 5 1~2 13 A 2 The most powerful form of black magic. A sweltering flame that reduces all to ash. Dorothea, Lorenz, Rhea

List of learnable Dark MagicEdit

Name Mt Hit Crit Range Wt Lvl Use Description User(s)
Miasma Δ* 5 80 0 1~2 5 E 10 Basic dark magic. Hubert, Lysithea
Mire Β* 3 70 0 1~3 5 E 8 Basic dark magic.
Inflicts Def -5 to foe for 1 turn.
Hubert
Swarm Ζ* 4 70 0 1~2 4 E 8 Basic dark magic.
Inflicts Spd -5 to foe for 1 turn.
Lysithea
Banshee Θ* 9 75 5 1~2 9 C 5 Intermediate dark magic.
Inflicts reduced Mov to foe for 1 turn.
Hubert
Luna Λ* 1 65 0 1~2 7 C 2 Intermediate dark magic.
Ignores enemy Res. Cannot make follow-up attacks.
Edelgard, Lysithea
Death Γ* 6 70 20 1~3 8 B 4 Intermediate dark magic.
Has a high Crit rate.
Hubert, Jeritza
Dark Spikes T* 13 80 0 1~2 11 B 3 Advanced dark magic.
Effective against cavalry.
Hubert, Lysithea
Hades Ω* 18 65 10 1~2 16 A 2 Advanced dark magic. Calls on the morbid might of the underworld. Edelgard, Lysithea

List of enemy-only Dark MagicEdit

Name Mt Hit Crit Range Wt Lvl Use Description User(s)
Bohr Χ* 10 60 0 3~10 20 B 3 The highest tier of dark magic.
Foes hit are left with 1 HP. Cannot make follow-up attacks.
Myson
Quake Σ* 8 50 0 All 20 B 1 The highest tier of dark magic.
Damages all units except Flying; cannot trigger follow-up attacks.
Thales

Trivia Edit

  • Ice magics are the only tier to be learnt exclusively by the same characters.


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