Ember needed more time to accept that she could control shadows now. Cedric didn't tell her about being a summoner, as the revelation might threaten her loyalty to him. He would tell her when he felt the time was right.
The shadow army below was no match for his shadow. In its current form, it could only feast on them. The summoner attempted another Shadow Merge to strengthen his shadow, but the entire thing seemed to collapse before it was done.
"As you can see, he's getting weaker the more shadows I devour," Cedric explained to Ember, hoping to make her accept the new reality. "I survived against a shadow knight because I obtained this power. If not for the shadows, I would have turned into a shadow myself."
"And what about... it?" muttered Ember as she pointed at Shade, who was licking its paws. There were no monsters in the surroundings for it to feast on, so it was just resting.
"I tamed it on the second floor."