# [RPG] Can the Polearm Master 1d4 bonus attack be used with Great Weapon Fighter/Master

dnd-5efeatsfighting-style

Until recently, I've been thinking of the extra love tap from Polearm Master as basically no better than dual wielding a dagger, but now I found out that not only does it benefit from ability bonus to damage, but I saw people claiming that, since you're attacking with a two-handed weapon, you're entitled to the rerolls of Great Weapon Fighting

When you roll a 1 or 2 on a damage die for an attack you make with a melee weapon that you are wielding with two hands, you can reroll the die and must use the new roll, even if the new roll is a 1 or a 2. The weapon must have the Two-Handed or Versatile property for you to gain this benefit.

… or the ability to power attack of Great Weapon Master …

Before you make a melee attack with a heavy weapon that you are proficient with, you can choose to take a -5 penalty to the attack roll. If the attack hits, you add +10 to the attack's damage.

And, bizzarely enough, I can't think of a reason these two wouldn't, since both the Halberd and the Glaive have the Two-handed and Heavy properties… Is this right?

# This looks like it would work, RAW

The Polearm Master feat (PHB, pg. 168) states:

When you take the Attack action and attack with only a glaive, halberd, or quarterstaff, 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 weapon. The weapon's damage die for this attack is a d4, and the attack deals bludgeoning damage.

Great Weapon Fighting (PHB, pg. 72/84) states:

When you roll a 1 or 2 on a damage die for an attack you make with a melee weapon that you are wielding with two hands, you can reroll the die and must use the new roll, even if the new roll is a 1 or a 2. The weapon must have the Two-Handed or Versatile property for you to gain this benefit.

The Great Weapon Master feat (PHB, pg. 167) states:

Before you make a melee attack with a heavy weapon that you are proficient with, you can choose to take a -5 penalty to the attack roll. If the attack hits, you add +10 to the attack's damage.

As PJRZ points out, the GWM feat wouldn't work with a quarterstaff since it's not a Heavy weapon, but with a glaive or halberd, it would; the Great Weapon Fighting style would work will all three weapons (since all three are either Two-Handed or Versatile).

You are making a melee attack with a Heavy weapon, so you could potentially add +10 to that d4+STR! And, you are making a melee attack with a Two-Handed weapon that you are wielding with two hands, so you could also reroll 1s or 2s on the d4!