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Message: <blockquote data-quote="fuindordm" data-source="post: 6519630" data-attributes="member: 5435">OK, so I just did a quick analysis of the feat and the results are actually kind of interesting. I'm not taking into account the possibility that you can mitigate the -5 penalty with advantage.Call P = your probability of hitting with a single attackCall W = your average weapon damage with a single attack.Then without GWF your expected damage is P * WAnd with GWF your expected damage is (P - 0.25) * (W + 10)After a little algebra you can find that the line of equality is P = 0.25 + W/40.If you draw a graph with P = [0,1] on the y-axis and W = [0,20] on the x-axis, this line divides the area neatly in half, along a shallow diagonal. The area above the line is where GWF is better than a normal attack in terms of expected damage.1. If your chance of hitting is low then GWF is seldom worth doing.  For example, if you have even a slight disadvantage (P<=0.4),  GWF  only makes sense if W <= 6, which is pretty unlikely for a 2H weapon. Maybe you should consider it if a shadow drained your strength, but even then you should probably prefer increasing your odds of hitting at all over increasing expected damage.2. If your chance of hitting is high (P>0.5) then GWF is usually worth it. But the higher your average weapon damage, the narrower the window.  For example, if W=20 (+2 two-handed weapon, Enlarge, and potion of storm giant strength) then GWF is beneficial only if your chance of hitting without it is 75% (P=0.75).I think it is really interesting that the higher you push W, the less useful GWF becomes. It's sweet spot is really in the range W=[5,15], when it is a good strategy at least half the time but not a good strategy against opponents that are already moderately difficult to hit. For W much higher  than this range, the probabilities push GWF to a corner case where if you're sure to hit them anyway, you might as well hit them harder.</blockquote>

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