Great Nature Staff is the 54th most-used weapon under the current filters (0.5% of 172,454 recorded fights), winning 21.0% overall - 16.2% of its wins come against better-geared opponents.
Best against Holy Staff (50.0%), Battleaxe (34.4%), Longbow (21.7%). Struggles against Hellspawn Staff (6.3%), Carving Sword (6.9%), Bow of Badon (9.1%).
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.