To conclude, no. Great Weapon Mastery is definitely not OP. In fact after this exercise, I recommend DO NOT take GWM. Sharpshooter is a maybe only because ranged attack has limited options for feats.
How good is great weapon master?
On average, if you have advantage with Great Weapon Master in 5e you will see a 35-41% increase in damage unless you’re a barbarian. They will see a 20-35% increase in DPR. … A fighter without advantage will deal on average 22.78 damage a turn using Great Weapon Master in 5e.
Is great weapons master op?
Great Weapon Master and Sharpshooter are strong, but not overpowered. Considering he’s only attacking with a +3 to hit bonus (assuming no magical weapon at such a low level), it’s okay. Keep in mind that Reckless Attack gives him advantage.
When should you use great weapon master?
An even simpler method if you are interested in another option is: use great weapon master if you believe the targets AC is 16 or lower, without advantage. And always use it with advantage. Never use it if you can one-shot the creature with a normal attack.
How much does great weapon master increase damage?
The average damage roll of someone possessing the Great Weapon Fighting style will be 6.3 instead of 5.5. This is a benefit of 0.8 extra damage points per hit.
How many times can I use great weapon master?
You may use the +10 / -5 feature of the Great Weapon Master feat for each of your attacks. You do not add 20 or 30. This means that you make multiple attacks whenever you take the Attack action.
Is sharpshooter overpowered?
I see occasional reference to sharpshooter being broken or overpowered. I think it’s a fun and useful feat, but not broken. tldr: sharpshooter improves expected damage only slightly over taking an ASI, and then only sometimes; this is counteracted by the broad utility of an ASI.
Is great weapon master a bonus action?
One of the benefits of the Great Weapon Master feat is: On your turn, when you score a critical hit with a melee weapon or reduce a creature to 0 hit points with one, you can make one melee weapon attack as a bonus action.
Can you use great weapon master twice?
With this weapon, GWM is always on. The biggest benefit is not that you can double it, but that you can spare spending an ASI on the feat. But you need a second weapon for the cases where you would not use GWM.
Do barbarians get a fighting style?
The fighting style, “Two Weapon Fighting”, allows adding STR to the off-hand, but barbarians do not get this fighting style. You may only attack once with the off-hand.
Can you use great weapon master with booming blade?
Yes, assuming one of the conditions are met, you can make the (non-spell) BA weapon attack.
Can you use great weapon master with a Glaive?
Great Weapon Master require a melee attack with a heavy weapon you’re proficient with. Polearm Master lets you make an attack with the opposite end of a glaive, halberd or quarterstaff; the former two have the heavy property. Thus, they can use both feats with a glaive or halberd.
Does polearm master add strength?
@MikeGBenson “does a player using the polearm master feat add strength to the damage roll of the bonus attack?” Yep!
Is 1d12 or 2d6 better?
Using this formula we see that our 2d6 weapon deals an average of 7 damage (3.5 * 2) per hit. On the other hand, the 1d12 weapon only deals 6.5 damage per hit. Since 7 is greater than 6.5 we can again confirm that the greatsword has a better chance of dealing more consistent damage each hit.
Can you use great weapon master on an opportunity attack?
Yes, you can use Great Weapon Master on an opportunity attack. As you say, making an opportunity attack is still an attack. To make the opportunity attack, you use your reaction to make one melee attack against the provoking creature.