Phantom Twinblade is the 25th most-used weapon under the current filters (1.3% of 895,482 recorded fights), winning 62.9% overall - 2.6% of its wins come against better-geared opponents.
Best against Redemption Staff (97.6%), Nature Staff (96.6%), Great Holy Staff (95.5%). Struggles against Glacial Staff (24.0%), Crystal Reaper (38.9%), Carrioncaller (40.6%).
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.