Tang Shaoyang checked his spirits, and they looked happy and well after the fight. But he noticed some who suffered as well. He realized that not all his spirits were as overpowered as Doombringer or Vandir who took the fight as a walk in the park. Despite doing less better than the others, the wounded spirits shared the same excitement after the battle.
Vandir was the first one to approach him, coming next to him, "Can you recall to the Spirit World? There's something I need to fix."
That was a surprise to hear coming from Vandir. The skeleton must have figured out something and wanted to experiment something with his undead.
Along with Vandir, he recalled the wounded spirits for them to recover as well. They recovered faster inside the Spirit World than here, after all. He recalled half of the spirits, leaving just fourteen spirits.