The Geo Hypostasis, known by its event name "Shattered Halcyon", is one of the elemental Hypostasis bosses in Genshin Impact that you can battle for character ascension materials. Here's how you can prepare for and tackle this boss.
Image via HoYoverse.
About Geo Hypostasis
•Liyue: Located in the Qingce Village area, to the east of the large lake near the village.
•Geo: All its attacks and defenses revolve around the Geo element.
Boss Mechanics
•Shield Phases: The Geo Hypostasis starts with a shield that needs to be broken. This shield can be broken with any type of attack but using Geo or Claymores can be slightly faster.
•Core Attack Phase: After breaking its shield, it will expose its core, making it vulnerable. This is when you deal the most damage.
•Regeneration: Upon taking enough damage or after a set time, it will regenerate its shield. It might also summon pillars or change its attack patterns.
Geo Hypostasis Attacks
•Geo Blasts: Shoots projectiles of Geo energy. These can be dodged or blocked with shields.
•Pillar Summon: It can summon Geo pillars that slowly move towards you. These can be destroyed with Geo or Claymore attacks for extra Geo Crystals, which can be used for Geo Traveler's abilities.
•Floating Platforms: Sometimes, it will float up and create platforms. These can be destroyed by Geo constructs or physical attacks.
•Shockwave: It creates a Geo shockwave that follows you. Keep moving to avoid it.
•Explosive Pillars: Occasionally, it summons pillars that explode after a short delay. Watch for their appearance and move away.
Combat Strategy 
•Use Geo Characters: Characters like Noelle, Ningguang, or Zhongli can benefit from Geo resonance, providing damage bonus or shield strength.
•Claymore Users: Characters with claymores like Diluc, Razor, or Xinyan can break shields and pillars faster.
•Healing and Defense: Bring a healer like Bennett or Diona for healing and shields. Zhongli's shields are particularly effective due to their low cooldown and high resistance.
•Elemental Reactions: While Geo doesn't react with other elements, using Electro (like Fischl or Beidou) can trigger Crystallize reactions, creating Geo shards that can be used for shields or Geo constructs.
•Mobility: Keep moving to avoid its ground-based attacks and to dodge projectiles. Use the environment to your advantage by jumping or dodging through obstacles.
•Timing: Save your burst abilities for when its core is exposed for maximum damage output.
Recommended Team Composition
•Geo DPS: Ningguang or Itto for high Geo damage.
•Support: Zhongli for shields and Geo resonance, or Albedo for consistent Geo construct damage and energy recharge.
•Healer/Shielder: Diona for healing and shields, or Bennett for healing and damage boost.
•Flex Slot: Fischl for Oz and consistent Electro application, or another character based on what you need (more DPS, Cryo for shields, etc.).
Combat Tips 
•Geo Constructs: Use characters like Albedo or Geo Traveler to create constructs. Destroying these with Geo attacks creates crystals that can be used for Zhongli’s shield or Ningguang’s abilities.
•Pillar Strategy: When it summons pillars, you can either destroy them or use them to your advantage by luring the Hypostasis near them, then breaking them for additional damage.
•Dodge and Shield: Learn the patterns for its attacks to dodge efficiently. Zhongli or Noelle's shields can block most attacks, giving you leeway to focus on offense.
•Environmental Interaction: Though not as crucial in this fight, use the terrain to your advantage where possible. Dodging through or around pillars can provide brief cover.
•Energy Management: Characters like Zhongli and Ningguang can generate a lot of energy particles. Make sure your team can benefit from these to keep Elemental Bursts up.
Combat Rewards
•Prithiva Topaz (Sliver, Fragment, Chunk, Gemstone): Ascension materials for Geo characters.
•Boreal Wolf's Milk Tooth: A unique drop used for ascension.
•Artifacts: Random drops from sets like Berserker, Instructor, The Exile, Gladiator's Finale, or Archaic Petra.
•Companionship EXP and Mora: Valuable for leveling up characters and friendship.
Fighting the Geo Hypostasis requires a combination of Geo attacks for efficiency, shield management, and strategic dodging. With the right team and tactics, you'll be able to gather the necessary materials for your Geo characters effectively.
