(Following the guide on the website.)

You bash a potbellied imp over the head with a dented shield.
A potbellied imp is smashed on the head with your bash causing lethal damage.
A potbellied imp has been slain!
Your bash knocks a potbellied imp's head against a rock so hard that it kills him.
For working both against and for the goodness of Tellerium, the Powers have granted thee a Mark.
You have been granted the Mark of Polarity!
You gain 59 practices!
You gain 50000 experience points!
Your blood freezes as you hear a potbellied imp's death cry.
You receive 0 experience points.
A potbellied imp vanishes with a clap of thunder!