When you roll a 20 with this magic weapon, the target takes an extra 7 Piercing damage.
Note: According to the SRD, it is an extra 2d6 Piercing damage, although this is incorrect.
Creatures that are Small or Tiny have disadvantage on attack rolls with heavy weapons. A heavy weapon's size and bulk make it too large for a Small or Tiny creature to use effectively.
This weapon adds 5 feet to your reach when you attack with it. This property also determines your reach for opportunity attacks with a reach weapon.
This weapon requires two hands to use. This property is relevant only when you attack with the weapon, not when you simply hold it.
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.
You have Disadvantage on attack rolls with a Heavy weapon if it's a Melee weapon and your Strength score isn't at least 13 or if it's a Ranged weapon and your Dexterity score isn't at least 13.
A Reach weapon adds 5 feet to your reach when you attack with it, as well as when determining your reach for Opportunity Attack with it.
A Two-Handed weapon requires two hands when you attack with it.
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.