Hammer is the 107th most-used weapon under the current filters (0.2% of 1,194,670 recorded fights), winning 26.8% overall - 13.5% of its wins come against better-geared opponents.
Best against Hallowfall (68.8%), Holy Staff (53.3%), Dual Swords (50.0%). Struggles against Spiked Gauntlets (5.2%), Dawnsong (6.7%), Galatine Pair (7.8%).
Winrate by IP difference (50-IP buckets, dot size = sample size). A flat curve means the weapon carries regardless of gear; a steep one means it only wins when out-gearing.