Daybreaker is the 45th most-used weapon under the current filters (0.7% of 682,678 recorded fights), winning 59.3% overall - 4.1% of its wins come against better-geared opponents.
Best against Hallowfall (87.9%), Pike (85.0%), Crossbow (78.8%). Struggles against Prowling Staff (27.4%), Flamewalker Staff (29.3%), Lightcaller (32.6%).
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.
