Dagger is the 29th most-used weapon under the current filters (1.1% of 737,978 recorded fights), winning 51.3% overall - 10.2% of its wins come against better-geared opponents.
Best against Nature Staff (86.5%), Great Holy Staff (84.8%), Lifetouch Staff (81.4%). Struggles against Dawnsong (13.8%), Flamewalker Staff (15.6%), Skystrider Bow (20.0%).
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.