Originally, given Xin Yun's current state, the idea of defeating an opponent with just a single water ball was practically impossible, even with the advantages of elemental incompatibility, it wouldn't be so easy.
However, the top competitor first took it lightly, thinking he had evaded Xin Yun's attack, but then got splashed with acid that swiftly condensed into an incredibly sturdy layer of Profound Ice over the body of the giant dragon!
Initially, Xin Yun's strong acid corrosion was already formidable enough that, once it came in contact with flesh, it was like being doused with sulfuric acid—difficult for skin to withstand. Now… after Xin Yun absorbed the Innate Nine Nether Ice Evil, its power increased even further, actually forming a layer of ice armor!