They allow the characters (and their enemies) call upon a wide range of tactics during battles. There are two types of maneuvers: attack and defense one. Attacks maneuvers are not cumulativ with each others, of course, as the defense ones.
The topic start with Adjust blow (or aimed strike, i don't know yet
![tongue.gif](http://forums.blackwyrmlair.net/style_emoticons/default/tongue.gif)
When the "spell" is cast, you can choose between five different options: the first give you a +1 damage but inflict a -1 THAC0 modifier. The fifth just gives +5/-5 modifiers at damage/THAC0. you can choose anyone. Here is the screen:
EDIT: the screen with the true bams