Why are we here?
"Superboy Prime (the yelling guy if he needs clarification)..." - Postmania
"...dropping an orca whale made of fire on your enemies is a pretty strong opening move." - Nik
"Why throw punches when you can be making everyone around you sterile mutant corpses?" - Pendaran, regarding Dr. Fate
Spellbreaker is now a part of Godslayer, which is also an Anti-Magic Weapon https://dragaera.fandom.com/wiki/Godslayer
Why are we here?
"Superboy Prime (the yelling guy if he needs clarification)..." - Postmania
"...dropping an orca whale made of fire on your enemies is a pretty strong opening move." - Nik
"Why throw punches when you can be making everyone around you sterile mutant corpses?" - Pendaran, regarding Dr. Fate
From the Book of Swords series:
Doomgiver reflects magic back
Shieldbreaker nullifies magic and has never failed in doing so.
Those are both excellent, but as swords go, the one Nik mentioned above negates on a planetary scale I think, and the Otataral swords (there are two mentioned) from Malazan block everything over at least the size of a battlefield where a couple of armies a hundred thousand strong are fighting (figure at least 50 or so square miles).
"But... But I want to be a big karate cyborg... ;_;" - Nik Hasta
"Get off my lawn! ...on this forum, that just makes people think of Cyclops." - Sharpandpointies
"...makes me think the Night King just says "Screw the rules, I have magic money" when it comes to physics." -Captain Morgan
To be fair, I'm not sure the sword form of Asuna's pactio blade can do full planetary on its own. That's more her body than the blade itself.
The sword version just cuts through everything and, I think can flatly erase armies of magical beings and stunlock multiple magicians who are threats to entire countries in raw power.
I've not looked at Negima in a while though, been far too taken with its sequel series to go back.
Not a weapon as such but The Ghostbusters Gear is pretty effective versus magic as I recall and Bink from the first couple of Xanth books was immune from magical harm as I recall.
Bink was pretty broken, yep.
Why are we here?
"Superboy Prime (the yelling guy if he needs clarification)..." - Postmania
"...dropping an orca whale made of fire on your enemies is a pretty strong opening move." - Nik
"Why throw punches when you can be making everyone around you sterile mutant corpses?" - Pendaran, regarding Dr. Fate
Doesn't Hawkgirl's mace disrupt magic because of the Nth metal?
Not sure of the limits of what spells it can break, but it seems comparable to Magik's sword.