Twin Slayers is the 76th most-used weapon under the current filters (0.3% of 361,395 recorded fights), winning 55.7% overall - 2.2% of its wins come against better-geared opponents.
Best against Holy Staff (93.5%), Battleaxe (71.1%), Longbow (59.3%). Struggles against Crystal Reaper (26.8%), Carving Sword (37.0%), Deathgivers (37.5%).
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.