Fell Handed

 You master the handaxe, battleaxe, greataxe, warhammer, and maul. You gain the following benefits when using any of these weapons:

• You gain a +1 bonus to attack rolls you make with the weapon.
• Whenever you have advantage on a melee attack roll you make with the weapon and hit, you can knock the target prone if the lower of the two d20 rolls would have also hit the target.
• Whenever you have disadvantage on a melee attack roll with the weapon,  the target takes bludgeoning damage equal to your Strength modifier (minimum of 0) if the attack misses but the higher of the two d20 rolls would have hit.
• If you use the Help action to aid an ally's melee attack while wielding the weapon, you knock the target's shield aside momentarily. In addition to your ally gaining advantage on the attack roll, the ally gains +2 bonus to the attack roll if the target is using a shield.