After Snickersnee killed Drifting Snow with his hammer, Drifting Snow changed his arrogant ways and stayed subdued for a very long period of time. He no longer went to the Invincible Continent, and instead, he completed quests every day, just like Li Yi, trying his best to increase his Territory Level.
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In the Soul Gate Instance Dungeon, the Iron Alliance and the Whole of Windcloud formed a party together to try and take down the King of Souls.
From the Iron Alliance, there were three Territory Masters, namely Queen Jiao, Unending Unmatched, and Li Yi. From the Whole of Windcloud, both Windcloud Brother Nine and Windcloud Sister Nine were both present.
Compared to when the dungeon first opened, the King of Souls was very easy to kill now. With Territory Masters in the fray, the boss battle's difficulty dropped further.