How many of the Legion Artifacts were already in lore before?

[Zaylin]

For example Ashbringer, Doomhammer, and Felo'melorn already exsisted in lore. The first two in game and the last in a novel. Are any of the others?

[Deleted]

Death Knight: None
Monk: None
Hunter: None
Warrior: None
Priest: None
Demon Hunter: None
Rogue: None
Paladin: Ashbringer
Warlock: Scepter of Sargeras
Druid: Scythe of Elune
Mage: Felo'melorn
Shaman: Doomhammer

[AwkwardSquirtle]

Destruction's Staff of Sargeras existed in Warcraft 2.
Frostmourne fragments obviously existed to forge the frost DK swords.
The mistweaver staff Sheilun was known in MoP I think, used to shroud Pandaria in the Mists.
The Boomkin Scythe of Elune was used to create the original worgen.
Several belonged to known characters but weren't really known beyond "they used this weapon", name was unknown, including the Mage artefacts belonging to Aegwynn and Elodi, former guardians (Aegwynn was Medivh's mother), Alleria Windrunner's bow, the Arms sword belonged to Arathor who united the human kingdoms, one of the rogue specs uses Garona Halforcen's daggers.
I think that's all the ones we've heard of, I may be wrong.

[Rathbourne]

the Arms sword belonged to Arathor who united the human kingdoms

Thoradin who united the human clans.Arathor is the son of Alleria and Turalyon.

[Aquamonkey]

Arathor is the son of Alleria and Turalyon.

That's Arator, no 'h'.

[UnluckyAmateur]

Rogue: None

Right, because Garona's daggers weren't important prior to legion.

[Seratha]

Death Knight: Blades of the Fallen Prince (Frost; a stretch considering they're forged from shards of Frostmourne)

Monk: Shielun, Staff of the Mists (Mistweaver; not explicitly stated in lore, but Shaohao did use weapons)

Hunter: Thas'dorah, Legacy of the Windrunners (Marksman; not explicitly stated in lore, but the Windrunner clan did use bows in their positions as Ranger-Generals)

Warrior: Strom'kar, the Warbreaker (Arms; not explicitly stated in lore, but Thoradin did use a weapon enchanted with Elven magic)

Priest: None

Demon Hunter: None

Rogue: The Kingslayers (Assassination; not explicitly stated in lore, but Garona did use daggers to assasinate her targets)

Paladin: Ashbringer

Warlock: Scepter of Sargeras

Druid: Scythe of Elune

Mage: Felo'melorn, Aluneth, Greatstaff of the Magna (Arcane; not explicitly stated in lore, but Aegywnn--the second-to-last Guardian--did use a staff), Ebonchill, Greatstaff of Alodi (Frost; not explicitly stated in lore, but the first Guardian did use a staff)

Shaman: Doomhammer

Fixed, thanks to the posters above. Should be about right. As previously stated, many of these are just names to weapons we already knew existed.

[Deleted]

Right, because Garona's daggers weren't important prior to legion.

They weren't. They don't had their own Backstory, designe or even names prior to legion. I just listed weapons we surely knew.

[Deleted]

Destruction's Staff of Sargeras existed in Warcraft 2.

Wow. Was this mentioned in some briefing and on who's campaing?

[Gaidax]

Some briefing? One of the campaigns objectives was to get Scepter of Sargeras, which Nerzhul then used to open portals on Draenor together with Book of Medivh and Eye of Dalaran.

Consequently this staff is what ripped Draenor apart and turned it into Outland.

It is also featured in the first novel.

[AwkwardSquirtle]

Thoradin who united the human clans.Arathor is the son of Alleria and Turalyon.

That's the one. Google tells me Arathor was the nation he formed. My mistake.

[Viradiance]

Death Knight: None
Monk: None
Hunter: None
Warrior: None
Priest: None
Demon Hunter: None
Rogue: None
Paladin: Ashbringer
Warlock: Scepter of Sargeras
Druid: Scythe of Elune
Mage: Felo'melorn
Shaman: Doomhammer

Eh... More like...

Death Knight: Frost... kinda. Reforged from a previous weapon.
Demon Hunter: N/A
Druid: Scythe of Elune 100%. Both animal artifacts kinda.
Hunter: Alleria's bow
Mage: Felo'melorn by name, Ebonchill and Aluneth by association/reputation of their previous owners
Monk: MW staff (again, by reputation). BRM staff lesser by way of Monkey King. Windwalker fists asspulled
Paladin: Ashbringer, Silver Hand by association
Priest: N/A
Rogue: Garona's Daggers
Shaman: Doomhammer, others by association
Warlock: Scepter
Warrior: Arms artifact

There's a lot of kindas which belonged to important lore characters but were never directly named.

[Tirilka]

Death Knight: Blades of the Fallen Prince (Frost; a stretch considering they're forged from shards of Frostmourne)

Monk: Shielun, Staff of the Mists (Mistweaver; not explicitly stated in lore, but Shaohao did use weapons)

Hunter: Thas'dorah, Legacy of the Windrunners (Marksman; not explicitly stated in lore, but the Windrunner clan did use bows in their positions as Ranger-Generals)

Warrior: Strom'kar, the Warbreaker (Arms; not explicitly stated in lore, but Thoradin did use a weapon enchanted with Elven magic)

Priest: None

Demon Hunter: None

Rogue: The Kingslayers (Assassination; not explicitly stated in lore, but Garona did use daggers to assasinate her targets)

Paladin: Ashbringer

Warlock: Scepter of Sargeras

Druid: Scythe of Elune

Mage: Felo'melorn, Aluneth, Greatstaff of the Magna (Arcane; not explicitly stated in lore, but Aegywnn--the second-to-last Guardian--did use a staff), Ebonchill, Greatstaff of Alodi (Frost; not explicitly stated in lore, but the first Guardian did use a staff)

Shaman: Doomhammer

Fixed, thanks to the posters above. Should be about right. As previously stated, many of these are just names to weapons we already knew existed.

Also Fu Zan, the Wanderer's Companion - the staff of the Monkey King. We definitely knew of it before, and I think it was even shown to us in-game and in video series about ShaoHao.

[Halwyn]

A little off-topic but anyone knows what happened to the Fearbreaker? I kinda thought we'll get it for discs.

[Viradiance]

A little off-topic but anyone knows what happened to the Fearbreaker? I kinda thought we'll get it for discs.

IIRC returned to Anduin. Probably to become his signature weapon or something.

Really missed the opportunity between it and Shallamayne / split swords.

[Deleted]

Eh... More like...

Death Knight: Frost... kinda. Reforged from a previous weapon.
Demon Hunter: N/A
Druid: Scythe of Elune 100%. Both animal artifacts kinda.
Hunter: Alleria's bow
Mage: Felo'melorn by name, Ebonchill and Aluneth by association/reputation of their previous owners
Monk: MW staff (again, by reputation). BRM staff lesser by way of Monkey King. Windwalker fists asspulled
Paladin: Ashbringer, Silver Hand by association
Priest: N/A
Rogue: Garona's Daggers
Shaman: Doomhammer, others by association
Warlock: Scepter
Warrior: Arms artifact

There's a lot of kindas which belonged to important lore characters but were never directly named.

Just because it was on the hands of a important character, it doesn't mean it's some artifact weapon unless it's named and stated that they wielded some legendary Stuff. Thoradins Blade could have also been some sword that is absolute outworn and useless by todays standarts. Would have been more logical.

[Lady Atia]

Also, if we count the rogue Thunderfury skin ....

[Sindile]

The eagle spear has been mentioned before (In the WoTA books I believe)

[Hyve]

Let's all just agree that M-Ra was very, very wrong.

Perhaps some of the weapons didn't exist, but most of them did to some extent. Spoken of, or known of, but never fully fleshed out in terms of the lore.

[Deleted]

Let's all just agree that M-Ra was very, very wrong.

Perhaps some of the weapons didn't exist, but most of them did to some extent. Spoken of, or known of, but never fully fleshed out in terms of the lore.

Not really, no? We knew that Garona wielded Daggers, but this Daggers had no own lore, just like Aegwynns Staff or Thoradins Sword. Names, Designe, powers and Lore for this specific Weapons just came with Legion. Garonas Daggers are probably even retconned, because before it was suggested that Yogg-Saron dropped on of her Daggers and there it had a different model and name.

http://www.wowhead.com/item=46024/kingsbane#dropped-by