Momentum. When you hit a creature with this weapon, and you have moved 20 feet or more in a straight line this turn, you can upgrade the damage dice to 2d10 instead.
Reach. 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.
Two-Handed. This weapon requires two hands to use. This property is relevant only when you attack with the weapon, not when you simply hold it.
Proficiency with a Lance allows you to add your proficiency bonus to the attack roll for any attack you make with it. A Lance requires two hands to wield when you aren't mounted.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Topple. If you hit a creature with this weapon, you can force the creature to make a Constitution saving throw (DC 8 plus the ability modifier used to make the attack roll and your Proficiency Bonus). On a failed save, the creature has the Prone condition.
Notes: Heavy, Reach, Two-Handed, Topple