Serpent Staff

Chanelling cosmic power through their twin-headed
staff, a Starpriest coats their allies' weapons in deadly
venom.
In your hero phase, pick one friendly Seraphon
unit wholly within 12" of this model. Until your
next hero phase, if unmodified wound roll is 6,
that attack inflicts 1 mw in addition to normal
damage.
A unit cannot benefit from this ability more than
once per phase.