With one precise strike you find your foe's weak spot, both physically and mentally, and put it off guard for the rest of the battle.

Daily   ✦     Martial, Reliable, Weapon
Standard Action      Melee weapon

Target: One creature

Attack: Primary ability vs. AC

Hit: 3[W] + ability modifier damage, and the target grants combat advantage to you until the end of the encounter.

Level 15:

  Hit: As above, but 4[W] + ability modifier damage.

Level 25:

  Hit: As above, but 5[W] + ability modifier damage.

Published in Dark Sun Campaign Setting, page(s) 51.