Bloodletter is the 14th most-used weapon under the current filters (1.9% of 329,843 recorded fights), winning 53.3% overall - 6.0% of its wins come against better-geared opponents.
Best against Nature Staff (92.9%), Spiked Gauntlets (79.5%), Longbow (78.9%). Struggles against Arclight Blasters (14.6%), Flamewalker Staff (21.6%), Prowling Staff (24.0%).
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.