(see FAQ 1.3, p. 8)
I - Rules
|Effect:||Each time you kill an enemy with a Melee attack, you may spend 1 fatigue to immediately make 1 additional attack with the same weapon. You may do this once each time you kill an enemy with a Melee attack.|
Road to Legend
The Cleaving skill can be learned at Olmric's Hut in the Road to Legend Advanced Campaign.
Sea of Blood
The Cleaving skill can be learned at Gray's Vale in the Sea of Blood Advanced Campaign.
II - FAQ
When making an attack with the Guard order, can a hero use abilities such as Cleave that grant extra attacks? What about other special abilities?
When making a Guard attack, a hero retains access to all appropriate special abilities unless otherwise indicated. This includes abilities such as Cleave, Quick Casting, and Rapid Fire that may grant an extra attack.
III - Tactics
Cleaving is a great skill for heroes when there are lots of monsters around. The weakest monster should always be the first target.
Cleaving doesn't require any fatigue to use if the hero also has the skill Vampiric Blood.