Lex had chosen a secluded area to form the house that he had prepared to relax in, so there was nobody around to see the giant figure that was formed out of water, but any powerful cultivator in the vicinity would be able to sense the large amounts of energy that was converging on where Lex and Ella were.
Swinging his arm at Ella, Lex wanted to see how powerful and fast he could strike an opponent, but she teleported and appeared in front of where the head of the figure was, believing that it was where Lex was looking from.
Lex formed a smile on the face of the giant water figure, before beginning to launch spears formed of water at Ella who was disappearing and appearing in nearby areas to avoid all the of the water spears.
He sustained the water form he was in for a minute and tried many different attacks that were all powerful and found that as long as he had energy, was calm and had water around him, the capabilities of that form were infinite.