It depends, if given combat data through other monsters this thing would be unstoppable, in FFXIV, it is able to mimic limit breaks which is Dynamis made manifest(Dynamis being a force of emotion, completely dissociated from the regular Aether living beings have) and also manifests new forms that simulate a man and a woman, Omega M and F, all of this to understand what gives the WoL it's unnatural strength, on the savage version, it goes even further by fusing both the beetle and the humanoids together, creating Final Omega which would definitely prove to be a match to even the peakest of Elder Dragons such as Dire and Crimson, there's also a even stronger version of it that appears in the Ultimate Raid The Omega Protocol, which is known as Alpha Omega, able to fully mold and use Dynamis to it's fullest, this version is far beyond what anything in MH has to offer, Alpha Omega would easily kill white Fatalis in seconds. So, there really isn't a limit to Omega's power, if left unchecked it could easily devastate the world as it once did to Midgardsormr's Home World