Dagger is the 29th most-used weapon under the current filters (1.1% of 702,715 recorded fights), winning 51.0% overall - 10.3% of its wins come against better-geared opponents.
Best against Nature Staff (88.6%), Great Holy Staff (83.9%), Holy Staff (81.1%). 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.