Beast Taming: Did the School Beauty's Cow Just Turn into Black Rhino Armor?

She transmigrated into a world ruled by spirit beasts. But somehow, she was an ordinary water buffalo! Luckily, she awakened the Devour-and-Evolve System. She was supposed to eat her way to becoming a mythical creature. But then she contracted with the campus belle! She even drew the Black Rhino Armor Origin from the Armor series. At the Beast Taming Awakening Plaza, a water buffalo mutated into a black rhinoceros. Xu Ji stared at the Qiankun Belt that had appeared around his neck, lost in thought. Wait! What do you mean the Black Rhino Armor I transform into can control all the water in the world? Sulfuric acid is water! What about molten iron at a thousand degrees? The Yellow Springs are water too! Even the legendary River of Children and Mothers is a current he can control. My name is Bai Xiyue! In my previous life, I was the demon empress, an Ice Crystal Phoenix! But I died while competing with the Dragon Emperor for a treasure. I never expected to be reborn. Even if I was reborn as a little white snake and became a beast companion of the human race! And not even the first-ranked one, but the second! It doesn't matter! As long as I destroy the contract with the first-ranked spirit beast, I can be promoted to first place and break free of the human contract. But! Why is this cow so strong? Why can't I even beat a cow?