This is an optional boss as players are not required to defeat him in order to advance in Elden Ring, but he provides useful items and Runes upon defeat.Ĭommander Niall is another variant of this boss.Įven after his lord was fled, Commander O'Neil continued to brandish his flag in the devastation of the rot-eaten field of battle, the sole veteran who remembers that battle with pride. He can be found at the heart of the Swamp of Aeonia in eastern Caelid. Commander O'Neil is a human who wields a halberd with a battle standard and summons aid from ghostly warriors.
Commander O'Neil is a Great Enemy Boss in Elden Ring.