By then, even if we had imperial and immortal weapons, we wouldn't be able to activate them, and would have no choice but to be at the mercy of others.
Henceforth, the Barbarian Clan would become a subordinate to the Human Clan and the Demon Clan, having to surrender to one of them in order to secure a chance to survive, and the Barbarian Clan would no longer be able to occupy the vast Barbarian Region.
The Barbarian Lord also clearly understood that these characters were only Saber-rattling, seemingly strong but withering inside, not daring to make a move.
Even if they joined forces to annihilate the Barbarian Clan, so what?
Let's not mention how the Barbarian Clan would fight back in desperation, but just to fully revive the thirteen Heaven Imperial Realm imperial weapons and six immortal weapons would consume a tremendous amount of resources, and the remaining heritage of the Barbarian Clan would not be enough to offset that consumption.