Polearm Master

You can keep your enemies at bay with reach weapons. You gain the following benefits:

When you take the Attack action and attack with only a glaive, halberd, quarterstaff, or spear, you can use a bonus action to make a melee attack with the opposite end of the weapon; this attack uses the same ability modifier as the primary attack. The weapon's damage die for this attack is a d4, and the attack deals bludgeoning damage.
While you are wielding a glaive, halberd, pike, quarterstaff, or spear, other creatures provoke an opportunity attack from you when they enter the reach you have with that weapon.

{ "name": "Polearm Master", "page": 168, "__prop": "feat", "source": "PHB", "entries": [ "You can keep your enemies at bay with reach weapons. You gain the following benefits:", { "type": "list", "items": [ "When you take the {@action Attack} action and attack with only a {@item glaive|phb}, {@item halberd|phb}, {@item quarterstaff|phb}, or {@item spear|phb}, you can use a bonus action to make a melee attack with the opposite end of the weapon; this attack uses the same ability modifier as the primary attack. The weapon's damage die for this attack is a {@dice d4}, and the attack deals bludgeoning damage.", "While you are wielding a {@item glaive|phb}, {@item halberd|phb}, {@item pike|phb}, {@item quarterstaff|phb}, or {@item spear|phb}, other creatures provoke an opportunity attack from you when they enter the reach you have with that weapon." ] } ], "reprintedAs": [ "Polearm Master|XPHB" ] }