The War Eternal

Upon killing an opposing creature, if your creature
would die from damage, negate that damage.
In addition, Demon and Zombie type creatures
suffer -3/-3.
"They knew he would come, as he always had, as he
always will, to feast on the blood of the wicked. For he
alone could draw strength from his fallen foes, and ever
his power grew, swift and unrelenting."
-Slayer's Testament