Heavy Crossbow is the 24th most-used weapon under the current filters (1.3% of 1,224,739 recorded fights), winning 56.8% overall - 5.1% of its wins come against better-geared opponents.
Best against Redemption Staff (95.0%), Great Holy Staff (93.2%), Great Arcane Staff (92.6%). Struggles against Arclight Blasters (28.9%), Hellspawn Staff (30.2%), Glaive (31.0%).
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.