Quicker Mercy (3.5e Feat)
From D&D Wiki
Quicker Mercy [Fighter Only]
Like the scars, the number of tactics to be used in the heat of battle grow. You are now so quick to dipatch of your fallen foes that it seems like second nature to you.
Benefit: You can use a move action to make a coup de grace with your weapon of choice (and only that weapon). You do not provoke an attack of opportunity doing so. All other normal consequences still apply. Furthermore, you can now use your free Cleave attack to coup de grace an enemy that has just been dropped by your hand.