The Heart of the Ox King is not the heart of an Ox King but rather a type of medicinal plant.
It is regarded as the top-tier material for ox evolution, far superior to the Thousand Leaf Grass that Lee Zhen mentioned earlier.
It's called the Heart of the Ox King precisely because its effects are incredibly potent.
Using Blue Star's material classification: ordinary, rare, uncommon, epic, legendary.
The Heart of the Ox King belongs to the epic level, while Thousand Leaf Grass is uncommon.
Generally speaking, this kind of material is priceless and rare.
Lee Zhen exhaled and said, "It seems Black Mountain City really went all out to attract attention this time."
Zhu He also nodded and said to Lin Chen, "How about it? Consider participating."
Upon hearing about the Heart of the Ox King, Lin Chen couldn't help but feel excited...
With Xiaobai's current state, he can still compete.
So he nodded and said, "It would be impolite to refuse."
