Ltheb Silverfrond
Explorer
Only U_K can answer this
because it hasn't been clarified what it takes yet to create a universe. (other than possibly a 120th+ level spell) It is hinted at that there is some benefit or option (or possibly as a means of limited destruction) for a Timelord to lose its dominion over a universe. It might be described as the Timelord shedding it's control over the cosmic-energy level dimensions.
When said Timelord is reduced to a Demiurge level, it usually lies dormant initially for whatever reason. (Gathering power? letting it's universe grow? Bored?) It is only when they awaken that they begin reclaiming their dimensional sovereignty.
I guess another being of sufficient power from outside the universe could enter within somehow and try to ursurp control. Oddly, they are extremely effective at doing so, as the only real method of Complete Invulnerability does not defend against weapons/spells/matter originating from outside the universe that entity resides in. Heck, this would even be the best time to strike if you didn't want to fight a full-power timelord. I would guess there would be divine doctrines and cosmic laws dictated in the Akashic Library about actions like this.
And since there are numerous greater entities than Timelords (Akasha, The Supreme Being, The Omega, most Great Wyrm nehaschimic dragons, and any other crazy Entity U_K can think of
) I am sure one of them could pull it off. (Actually, any Timelord with the Apocrypha divine ability can pull it off, since they 'cannot be scried or detected' all they need to do is go invisible, since they are the universe themself)

When said Timelord is reduced to a Demiurge level, it usually lies dormant initially for whatever reason. (Gathering power? letting it's universe grow? Bored?) It is only when they awaken that they begin reclaiming their dimensional sovereignty.
I guess another being of sufficient power from outside the universe could enter within somehow and try to ursurp control. Oddly, they are extremely effective at doing so, as the only real method of Complete Invulnerability does not defend against weapons/spells/matter originating from outside the universe that entity resides in. Heck, this would even be the best time to strike if you didn't want to fight a full-power timelord. I would guess there would be divine doctrines and cosmic laws dictated in the Akashic Library about actions like this.
And since there are numerous greater entities than Timelords (Akasha, The Supreme Being, The Omega, most Great Wyrm nehaschimic dragons, and any other crazy Entity U_K can think of
