Zhao Deyi spent more time cultivating in the Inner Underground Palace, the more strength he gained. Although Qi Tian could also cultivate in the Outer Palaces using spirit stones, this common method of cultivation wouldn't grant him any substantial enhancement in combat power. His overall ability had already been somewhat inferior to Zhao Deyi's. If he were to wait until Zhao Deyi ended his cultivation of his own accord, the gap between them would become even greater, making it increasingly difficult for him to deal with Zhao Deyi.
Qi Tian gritted his teeth. At this point, he had no choice but to take the initiative, to find a way to create a battle environment favorable to himself and seize the initiative in combat, rather than dryly waiting here. If he waited, the already unfavorable battlefield situation would turn even more to his disadvantage.