Possibly the Kantele which if true, see Legendary history on the wiki page
Holy crap, Vainamoinen!? It fits frighteningly well too.
He spent over 700 years in his mother's womb and so was born wise (explaining why he's summoned inside his mother but capable of intelligent communication).
He crafted the first kantele ever from the jawbone of a giant pike (which his mother, presumably Ilmatar, echoes by carving her kantele from the bones of Lancer's fossil of an aquatic creature).
The only real question would be why is he a Saber?
OmniGManJr said: The only real question would be why is he a Saber?
In the song 39 before Väinämöinen and gang went to Pohjola to steal Sampo Väinämöinen asks Ilmarinen to forged him a new sword. Once he receives the blade he boasts that it is strong enough to cleave through mountains and during the journey he uses it to kill a giant pike (after both Lemminkäinen and Ilmarinen had tried to kill it with their own swords and failed) and cut through mist conjured up by Louhi. Not exactly grade A Saber material but I can see where the idea of making him a saber could come from.
Specifically, it's Tray, Mary Anning's terrier who accompanied her on her expeditions.
Damn it~
Don't think this is the end of this~I'll make sure you all suffer mass extinction~Lancer-sanTwang twang twangSaber-san has come for a visitWha
ReallyDoesn't this just fill your heart?Saber-san is apparently good with music, soShe's going to do a live condolence performance for youPlease enjoy this folk instrument ambient soundBy the way
That instrument is made from Lancer-san's beloved ichthyosaur bonesIsn't it nice that the remains were put to good useI won't forget this humiliation…