As inspired by Diablo 3.
Headcleaver is a large skeletal headsman wielding either a greataxe or a greatsword. Within its lair is a wood or stone or iron block that was once used to execute prisoners by beheading. Headcleaver can use Suggestion as the spell to entice characters to "take a nap on the stone" and thereby grant him a huge bonus to hit/damage/crit.
