Hellspawn Staff is the 64th most-used weapon under the current filters (0.3% of 147,076 recorded fights), winning 55.0% overall - 4.8% of its wins come against better-geared opponents.
Best against Dual Swords (57.1%), Battleaxe (56.8%), Boltcasters (40.0%). Struggles against Boltcasters (40.0%), Battleaxe (56.8%), Dual Swords (57.1%).
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.