Rules for the Blade of Judgement are as follows:

The Blade of Judgment uses the same rules as the Mummy Cleaver, but against models in an Infamous or Eater of the Dead warband, it has the following additional traits: It has a Damage Modifier of 3 instead of the usual 2, enemies killed by the Blade of Judgment cannot be raised as undead by any spell or power (such as Darkfire), and undead enemies killed by the Blade of Judgment are forever destroyed, disintegrating into dust. Undead models that are destroyed cannot be recovered during Casualty Buy-Back.

Now, the Mummy Clever Special Rules only apply to models on a 20mm or 25mm base. My question is do the extra special rules of the Blade of Judgement also only apply to a model on a 20mm or 25mm base.

Mainly, I want to know if my Necro Guard Hero equipped with a Blade of Judgement inflicts the final wound on an Abomination, is the Abomination permanently killed, or can it be purchased in casualty buy back because it is on a larger than 25mm base?

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Slayer of the Minotaur Lord of Knossos (S.D. '10), Savior of Calydon (S.D. '11)

I would say no, they do not apply only to 20mm and 25mm based models but to any undead model. Then again Necropolis Guard was got me to start collecting Aegyptus models/factions so I am likely biased.

But also it specifically mentions killed in the Blade of Judgement rules, not the natural 10 rule for the regular Mummy Cleavers. That kind of leads me to believe that the BoJ is basically a death weapon. a relatively cheap one all things considered, but it seems so based on the wording.

(edited because I left out a pretty key word)