Genshin Impact: Achieve Vivianne Of The Lake, Update 4.0 Breakdown, Fontaine's Gameplay Twist, Lyney's Best Builds, Lynette's Ascension Guide

In Genshin Impact 4.0, players can unlock the Vivianne of the Lake achievement by defeating the Hydro Phantasm boss. The boss is located north of Court of Fontaine and has deadly attacks, requiring a powerful team to counter. Strategies include using shielders like Zhongli, dodging attacks, and using characters with countering elements such as Pyro and Dendro. Defeating Vivianne of the Lake rewards players with Primogems, Hero's Wit, Mora, and Hydro Sigils.