Shade
Monster Junkie
An extra head could also grant the ettin's:
Superior Two-Weapon Fighting (Ex): An ettin fights with a morningstar or javelin in each hand. Because each of its two heads controls an arm, the ettin does not take a penalty on attack or damage rolls for attacking with two weapons.
Superior Two-Weapon Fighting (Ex): An ettin fights with a morningstar or javelin in each hand. Because each of its two heads controls an arm, the ettin does not take a penalty on attack or damage rolls for attacking with two weapons.