Chillhowl is the 95th most-used weapon under the current filters (0.3% of 862,057 recorded fights), winning 57.1% overall - 2.9% of its wins come against better-geared opponents.
Best against Great Nature Staff (85.0%), Cursed Staff (77.4%), Battleaxe (74.8%). Struggles against Lightcaller (20.0%), Arclight Blasters (29.6%), Prowling Staff (35.5%).
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.