You'll find the Geo Hypostasis boss in the Guyun Stone Forest area of ​​Liyue, and just like the other two bosses, it will present its own challenge when you fight it. The good news is that with a few simple tactics, this is actually the easiest of the Hypostasis boss fights.
First, you'll need to throw a party. Bring the healer of your choice, an Electro character and a Pyro character. Razor will really excel in this fight if you have him. Any Claymore character will be great at smashing through pillars and setting up for an easy win with simple strategy.
The Geo Hypostasis will create pillars in the arena, then sit on them safely. If you can't destroy them quickly, it's best to break them about 90%, then wait for the geo-hypostasis to return to them, don't waste your efforts breaking them after the boss has already moved the pillar, just let for an easy smash the next time they go back.
When you break a pillar the boss is on, it will fall to the ground and you can start hitting it. Cryo and Electro stacking will tear it apart in no time. What you will have to watch out for are the multiple attacks he can launch, some of them are very dangerous.
The boss will throw rocks at you and hit you with a shockwave attack that can knock you back. It will also drop rocks from the sky on you, but these will be telegraphed by circles on the ground. The main one to watch out for is when multiple Shockwaves come from all pillars, dealing damage. It is better to run if the pillar is healthy, because it will do considerable damage and can kill you.
When you lose enough health from the boss, it will form three pillars in the center of the arena that you must kill. Each pillar will be reabsorbed into the boss, healing them for around one-sixth of their HP. You must destroy them all within 15 seconds. Otherwise, just repeat the steps until he's completely dead and you've destroyed all the pillars.
