Earthshatter Greatclub

Weapon (greatclub), uncommon

This massive wooden club appears to be far too unwieldy to be used effectively by any normal being. To wield this weapon, you must have a Strength score of at least 19. Targets hit by this weapon are knocked away 5 feet by the sheer force of the blow. Upon missing a target, you slam the weapon into the ground creating a 5-foot square of difficult terrain adjacent to the target within your reach. If you roll a critical hit, deal normal critical hit damage to the target and also create a 15-foot square of difficult terrain emanating from the target.