I need more Manga

Well, surely you've got some Deathnote, right?

Gensomaden Saiyuki.

And maybe Rave Master.

Fullmetal Alchemist? :S

Can't really remember the plot that well.

Ok, there are two stones/artifacts, if I remember, a Rave, and a Dark Bring (? Maybe it's Jap translation)...

Anyways. The Rave is good, Dark Bring bad. 50 years before the start of the story, this guy got this sword (I think with all the Raves in it or something) and cut the Dark Bring, which released this powerful wave that decimated stuff.

Ok.

So it starts with this guy called Haru who gets a sword, and he goes out of his island for some reason (I think to find his dad?) with this small white animal/thing called Plue. He detects Raves. He meets up with this girl called Elie who wields two guns, and for some reason they set off to find Raves and bring an end to this organization called Demon Card who have somehow harnessed the shards of Dark Bring.

I know. Bad description. I haven't seen the anime in 2 years and even then I wasn't really following it. But it was good

Btw, the Raves can transform Haru's sword to different ones. In total there are ten swords, I think. And some of them include: a sword which explodes on impact, a sword which makes him lighter and thus incredibly fast, a sword which seals up magic and a sword which can create a large vacuum.

Oh, they also meet this guy called Musica who can change silver into anything.

Dark Brings, and later different organizations, wield powers like: turning earth into water, absorbing and reflecting damage at double impact, etc.

Whatever. Maybe wikipedia will give a more coherent synopsis