ancillary *attack?

[origarmi chicken]

I could just be being silly,
Does the vassal of menoth's ancillary attack work on special attacks such as thresher?
Sorry if it is a stupid question.

[Crate123]

You can only do special attacks during your activation when you pick between initial attacks and special attacks.

[Valander]

RNG 5. Target friendly Faction warjack. If the warjack is in range, it immediately makes one normal melee or ranged attack. A warjack can make an Ancillary Attack special action only once per turn.

The ability specifies normal attacks, which are defined:

A normal attack is an attack with a weapon that is not a special attack.