Rose's actions, to tell the truth, were completely within Duanmu Huai's expectations.
From the Giant Horned Rat of Novice's Village, to the Annihilation Demon King of Sky Province, to Faelun's Rose, Duanmu Huai had long noticed that the deities of Subspace all shared one characteristic.
They liked to drag troublesome beings into their own Divine Realm to eliminate them.
Of course, strictly speaking, this wasn't really a flawed tactic, even the Evil God favored this approach. The reason was simple: deities from Subspace needed a massive amount of soul energy to appear on the main plane and were also suppressed there. If their opponent was troublesome and difficult to handle, then Saint's Descent or Avatar's Descent would basically be meaningless, merely a waste of energy.
Therefore, the best solution was to open a Teleportation Portal, pull the opponent into one's own realm, where one was virtually invincible, and surrounded by allies, making it impossible for the enemy to escape.