Suggestions for an Anti-magic weapon needed

[Ping_T._Squirrel]

I am currently making a nemisis for my PCs (Not the BBEG but a very capable associate of who they think the BBEG might be), and I am looking to make him an agile melee class. That is just fluff though because what I need help with is making his weapon. Basically, I want a weapon when it hits and/or criticals, has a chance of 'casting' disenchant on the victim and his equipment.

How do you guys think this should work? I am good with creatures and all that, but terrible at equipment design.

[Black Mage]

Are you talking about using a targeted disjunction spell when the guy hits? Personal antimagic field when he hits? Or just a dispel magic (normal or greater) ?

[Ping_T._Squirrel]

Might be a scaling effect as for what spel it mimics though I would like it to be limited to a single item or target an attack. I sort of had in mind the dispel magic spells though for how the effect would work.

[Roderick_BR]

There is no specific enchantment for it, but you could use the rules for magic itens in Tome And Blood (Complete Arcane probably has better rules) to make a sword with a use activated Dispel Magic.

[Fax Celestis]

Making an intelligent Legacy weapon (see Weapons of Legacy) might be a good way to go.

[Black Mage]

There is a dispel and greater dispel enchantment...forgot which book though...maybe underdark.

[Ping_T._Squirrel]

That sounds promising Black Mage. Can you tell me a bit about them?