Stun:
This is an adaption to another Speciality or Ability putting
extra precision into the attack in an attempt to Stun the victim. It
adds an additional (if any) penalty of +5 to Initiative and to hit
roll, but gains an additional (if any) doubling of Stunning effects, or
adds Stunning to the effect if not already included in the attack. If
Stunning is not part of the normal Speciality or Ability effects, then
this causes a Stun on the victim for 1D4+1 rounds - (STA ÷10) rounds
(Minimum of 1 round). While Stunned, the victim becomes last
in Initiative every round, and suffers a +70 to all Skill rolls until
the Stun wears off.