When you roll a 20 with this magic weapon, the target takes an extra 7 Bludgeoning damage.
Note: According to the SRD, it is an extra 2d6 Bludgeoning damage, although this is incorrect.
This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.
This magic weapon deals an extra 2d6 damage to any creature it hits. This extra damage is of the same type as the weapon's normal damage.
A Versatile weapon can be used with one or two hands. A damage value in parentheses appears with the property. The weapon deals that damage when used with two hands to make a melee attack.
If you hit a creature with this weapon, you can push the creature up to 10 feet straight away from yourself if it is Large or smaller.