I was thinking more along the lines of personal weapons than of Death Stars and such.
I’ve always liked the sword Terminus Est from Gene Wolfe’s **Book of the New Sun ** series. Though it wasn’t in any sense magical, it was a unique weapon and an important part of the story. I think we have a member here who goes by that name, too.
Also from Wolfe, I liked the Azoth and the needlers in his Littany of the Long Sun series. The Azoth is kind of hard to explain, other than to say it wasn’t completely unlike a light saber. Needlers are handguns that electromagnetically launch metal needles at high velocity, something like a tiny rail gun. Wolfe is an engineer and went into great detail about why the needles are deliberately not pointy, as well as other interesting technical details about them. Gad, I want one. I always enjoy the way Wolfe writes about edged weapons. Apparently, he collects them.
The various knives, poisons, and other non-laser type weapons in Dune fascinated me when I read that book back in the 70’s. Alas, I found myself far less interested in any of the sequels than I did the original.
I always thought from pure asthetics, Buffy’s scythe from End of Days was kick-ass.
However, it was a reused prop from Season 2. Note to prop department: when your main character finds an all-powerful key to anihilation of the First Evil in the universe, don’t reuse the prop she tossed away in high school unless it’s a plot point!
And also, it wasn’t a scythe, although the characters kept referring to it as one. Axe, I’ll give you. Scythe’s are reaper-y sorts of things with great sweeping action.
THE WAVE MOTION GUN Are you being overrun by enemy Ships or leathal Ship killer traps or want to destroy your enemies home planet, simply convert your Ship into a huge giant Weapon and take care of them in one shot!