Liu Yan was also aware the enchanted puppets could improve their combat strength through him, their master. He could help them exchange for better materials or complete their upgrade.
In addition, the enchanted puppets could also improve their combat effectiveness through themselves.
The only way to improve their combat strength was through battle, preferably a bloody battle. The usual easy battles or where they abused weaker enemies would not increase their combat strength.
And the situation before him seemed to make sense.
The red enchanted puppet had only experienced one battle with the Whirlwind Turtles.
They were all ordinary Whirlwind Turtles with 5-star combat strength. The red enchanted puppet with 7-star combat strength was simply a piece of cake.
Logically speaking, such a battle would not have been able to increase the combat power of the red enchanted puppet.