Cleave

You can follow through with a powerful melee attack.

• Prerequisite: Strength 13, Power Attack.
• Source: Core

If you deal an opponent enough damage to reduce its hit points to 0, you get an immediate extra melee attack against another opponent within your reach. You cannot adjust 1 square before making this extra attack. The extra attack is with the same weapon and at the same bonus as the attack that dropped the previous opponent. You can use this ability once per round.