You will find four files in Deathblow folder. Here that each of them does:

(1) File (syncdeathanimations.gda) adds:

 17 new finishing moves(Deathblows) for a combination a Shield-Longsword or a Shield-Waraxe,
 12 new finishing moves(Deathblows) for a combination a Shield-mace,
 13 new finishing moves(Deathblows) for for a combination a Longsword-dagger, a Longsword-Longsword, a Longsword-Waraxe, a Longsword-mace, an Waraxe-Longsword, an Waraxe-dagger, an Waraxe-Waraxe, an Waraxe-mace.
 10 new finishing moves(Deathblows)for for a combination a mace-dagger, a mace-Longsword, a mace-Waraxe, a mace-mace.
 13 new finishing moves(Deathblows) for Greatswords and  Battleaxes.
 3  new finishing moves(Deathblows) for mauls.
 
(2) File (creatureranks_blows. GDA):  

Now almost each simple last blow on the opponent will ends with Deathblow.

(3) File (BITM_base. GDA):

Now All Waraxes and Battleaxes in game can cut down a heads (In original game to cut down a head by an axe was impossible).

(4) File (ItemStats. GDA) changes weapon balance of the game, makes its more realistic.
                            AFTER (BEFORE)
 Weapon     : Damage : Armor penetration :   Speed    :    CritChanceModifier  : 
 ____________________________________________________________________________________         
 Longsword  :  7(7)  :       2(2)        : -0.1(-0.1) :         2(2)           :
 Dagger     :  4(4)  :       4(4)        : -0.5(-0.5) :         3(3)           :
 Mace       :  6(5)  :       4(4)        :    0(0)    :       0.5(0.5)         :
 Greatsword : 11(11) :       4(3)        : -0.1555(0) :        4(1.5)          :
 Maul       : 12(9)  :       7(7)        :  0.1(0.05) :        6(0.5)          :
 Battleaxe  : 13(10) :       5(3)        : 0.05(0.1)  :         5(3)           :
 Waraxe     :  8(6)  :       3(2)        : -0.05(-0.1):         2(1)           :
  
 Installation: 
 
 Copy Deathblow folder (or only the files you need) in:
 
 Dragon Age Origins\packages\core\override
 
 Deinstallation:
 
 Simply remove folder Deathblow from Dragon Age Origins\packages\core\override
 
 Compatibility with another mods:
 If you use DAM mod,delete creatureranks_blows.GDA from here: Documents\BioWare\Dragon Age\packages\core\override\mutator.
 
 The rights: Do with this mod all that you want and to full pleasure.
 The author of this mod is me (Alexander Molodchy).
 P.S.: as a bonus I apply to a mod the compillation of my music (dont like it - remove it:) my website: http://amensign.com