Mercurius

Mercurius
Concept artwork of the Mercurius blade from Fire Emblem Echoes: Shadows of Valentia.
Name (JP)	メリクルレイピア, Mericle Rapier (FE1) メリクルソード, Mericle Sword (FE3) メリクル, Mericle (FE11 onward)
First Seen	Fire Emblem: Shadow Dragon and the Blade of Light
Weapon Type	Sword
Most Common Rank	A
Uses	Varies
[view]

“A powerful blade, and regalia of House Archanea.”
—In-game description, Shadow Dragon

Mercurius is a legendary Sword that appears in the Archanea Series of the Fire Emblem franchise, alongside Fire Emblem Awakening. One of three Regalia weapons of Archanea, this sword serves as the counterpart to the Gradivus lance and the Parthia bow. Taking its roots from an unidentified origin, this sword was purloined by the enigmatic thief Adrah, where it played a pivotal role in his crusade of conquering the continent of Archanea. Upon the formation of the Kingdom of Archanea, Mercurius was bequeathed the honorific of being one of three hallowed Regalia weapons, and subsequently passed down through generations of Archanean royalty.

During the War of Shadows that occurs in Shadow Dragon and the Blade of Light, Book 1 of Mystery of the Emblem and their remakes, this sword is stolen by the invading Grustian troops. Est, upon learning of the vexing fact, then embarks on a mission to recover it, and thereafter passes it into the possession of Marth's army after rejoining it. The sword is then returned to the vaults of House Archanea, where it is ceded upon Astram when he assumes the role of the captain of the newly-assembled Archanean Free Company.

During the War of Heroes that takes place in the sequel and its remake, the Mercurius blade is observed to be the primary weapon wielded by Astram in Chapter 16, where he is convinced by Jeorge to defect to Marth's army, in accordance to his loyalty to Nyna and his desire to live for Midia's sake.

In Shadow Dragon and the Blade of Light, the Mercurius is referred to as the Mericle Rapier by Nyna at the end of Chapter 12, that which may explain why it is only usable by Marth. This is, however, rectified in the later games, where the sword can be equipped by any sword-wielder with a sufficient Weapon Level.

Weapon Stats

Fire Emblem: Shadow Dragon and the Blade of Light

Name				Type
Mercurius				Sword
WLv	Uses	Mt	Hit	Crt	Rng	Wt	Worth
-	24	18	100%	10%	1	1	-
Effect
Marth-only; gives Marth a 25% chance to gain 2 points instead of 1 when a stat increases during a Level-Up.

Fire Emblem: Mystery of the Emblem

Name				Type
Mercurius				Sword
WLv	Uses	Mt	Hit	Crt	Rng	Wt	Worth
12	24	20	100%	0%	1	4	24,000
Effect
Doubles experience gain.

Fire Emblem: Shadow Dragon

Name					Type
Mercurius					Sword
Rank	Uses	Mt	Hit	Crt	Rng	Wt	WEx	Worth
A	20	18	100%	10%	1	8	2	-
Effect
-

Fire Emblem: New Mystery of the Emblem

Name				Type
Mercurius				Sword
Rank	Uses	Mt	Hit	Crt	Rng	WEx	Worth
A	20	18	100%	10%	1	2	0
Effect
-

Fire Emblem Awakening

Name				Type
Mercurius				Sword
Rank	Uses	Mt	Hit	Crt	Rng	WEx	Worth
A	25	17	95%	5%	1	?	0
Effect
-

Fire Emblem Echoes: Shadows of Valentia

• Stats
• Forging

Name			Type
Mercurius			Sword
Mt	Hit	Crt	Rng	Wt
11	80%	0	1	2
Effect
Teaches Recovery

Forging
★			Mt	Hit	Crt	Wt
1		2	+1	+10		-1

Fire Emblem: Three Houses

“A legendary sword with high hit rate and might, used in the War of the Eagle and Lion.”
—In-game description, Three Houses

Name					Type
Mercurius					Sword
Rank	Uses	Mt	Hit	Crt	Rng	WEx	Wt	Worth
A	40	15	100%	10%	1	?	7	-
Effect
-

Fire Emblem Engage

Name				Type
Mercurius				Sword
Rank	Uses	Mt	Hit	Crt	Wt	Rng	Worth
D	∞	12	80	0%	7	1	100
Effect
Engage Weapon. Sword wielded by Emblem Marth. Doubles user's earned experience.

Fire Emblem Heroes

Name		Type
Mercurius		Sword
Mt	Rng	SP	Rarity
16	1	400
Effect
Grants Atk+3. At start of turn, if unit's HP ≥ 50%, grants Atk/Spd/Def/Res+4 to unit and sword, lance, axe, bow, dagger, or beast allies within 2 spaces for 1 turn. (Bonus granted to unit even if no allies are within 2 spaces.)

Item Locations

Fire Emblem: Shadow Dragon and the Blade of Light

Method	Location
Dropped	Est (Ch. 18)
Inventory	Est

Fire Emblem: Mystery of the Emblem

Method	Location
Inventories	Book 1: Est Book 2: Astram

Fire Emblem: Shadow Dragon

Method	Location
Inventory	Est

Fire Emblem: New Mystery of the Emblem

Method	Location
Inventory	Astram

Fire Emblem Awakening

Method	Location
Treasure	Xeno. 15 - Random from Chest.
Bonus Item	Can be claimed as a prize from the bonus box upon accumulating 3,000 Renown points.

Fire Emblem Warriors: Three Hopes

Method	Location
Survey Point	Mine Survey Spot in Southern Essar Territory in Chapter 11 of Azure Gleam. Initial form is an A Rank Rusted Sword. Choose between this or an A Rank Rusted Lance.

Etymology

The sword's name is derived from Saint Mercurius, a Christian martyr whose name essentially carries the meaning "wielder of two swords". According to historical scriptures, the second sword that he wielded was a gift bequeathed upon him by the Archangel Michael.

It could also refer to Mercury, the Roman God of thieves, messages, and travel, possibly in reference to the sword being famously wielded by a thief.

Trivia

• Mercurius' in-game model in Echoes: Shadows of Valentia is based on its appearance in the Fire Emblem Museum.
  • There are small notable changes in its appearance, however.
• In Echoes: Shadows of Valentia, it is possible to acquire an additional Mercurius from upgrading a Blessed Sword.
  • It is unknown if this was how the original Three Regalia were created, or if it was simply a gameplay mechanic.

Gallery

The Mercurius, as it appears in the sixth series of the TCG.

Official artwork of the Mercurius from Fire Emblem Museum.

Concept artwork of the Mercurius blade from Awakening.

Marth wielding Mercurius in Awakening.

Emblem Marth's Mercurius in Engage.

Sprite of Mercurius from Engage.

Sprite of Mercurius from Fire Emblem Heroes.

Mercurius as it appears in Tokyo Mirage Sessions ♯FE.