Here's a comprehensive guide for the Denouement of Sin Domain in Genshin Impact:
Domain Information:
•Location: Belleau Region, Fontaine
•Elemental Type: Variable (due to Ley Line Disorders)
•Domain Type: Domain of Blessing
How to Unlock:
•Adventure Rank: At least 22.
•Region Access: Unlock Fontaine by progressing through the Archon Quest "Prologue: Act III - Song of the Dragon and Freedom."
•Specific Unlock: No additional quests required; simply approach and interact with the domain's entrance.
Rewards Schedule:
•Daily: The rewards are fixed regardless of the day:
•Artifact Sets: Marechaussee Hunter and Golden Troupe.
•Levels: Higher levels yield better chances for 5-star artifacts, but this isn't tied to a daily schedule.
Enemies:
All Levels:
•Meks: Intelligence Protocol, Assault, Construction, and Exploration types.
•Ley Line Disorder: All party members will have their Crit DMG increased by 10% each time their HP fluctuates (either through healing or damage taken), stackable up to 4 times.
Domain Step-by-Step Walkthrough: 
Entrance:
•Teleport to Romaritime Harbor and head north to an island where the domain is located.
First Wave (Lower Levels):
•Enemies: Basic Mek constructs.
•Strategy: Utilize characters with HP manipulation mechanics like Hu Tao or Xiao for instant Crit DMG buffs. Use healers or shielders to manage HP for the buff stack.
Second Wave (Higher Levels):
•Enemies: More varied and tougher Mek types, potentially including specialized ones.
•Tactics: Focus on AoE to clear groups or use single-target DPS for tough enemies. Pay attention to your team's HP to keep the Crit DMG buff active.
Boss Wave:
•Enemies: A mix of all Mek types, possibly with more aggressive behavior.
•Strategy: Balance between dealing damage and managing your team's HP to maintain the Crit DMG stacks. Use Elemental reactions to your advantage, especially those that can be triggered by HP changes.
Rewards:
Basic Rewards:
•Artifacts from Marechaussee Hunter and Golden Troupe sets.
•Mora, Adventure EXP, Companionship EXP.
•First Clear: 5 Primogems upon unlocking the domain.
5 Strategies for Denouement of Sin: 
•HP Management: Characters who can heal themselves or benefit from HP changes like Hu Tao or Itto work exceptionally well here.
•Elemental Reactions: Use Hydro, Pyro, Cryo, and Anemo for reactions that might trigger the HP change needed for the Crit DMG buff.
•High DPS with Sustain: Teams combining high damage with some form of sustain (either healing or shielding) can maintain the domain's buff effectively.
•Crowd Control: Characters like Kazuha or Venti for grouping enemies, making it easier to manage both damage and HP.
•Adaptability: Be ready to switch characters or strategies if the current setup isn't working due to the unpredictable HP fluctuation.
5 Tips for Denouement of Sin: 
•Artifact Farming: Run the domain at the highest level you can manage for better artifact quality.
•Character Builds: Ensure your characters are suited to benefit from the Crit DMG increase, focusing on crit stats.
•Resin Efficiency: Use Condensed Resin for double rewards if you're confident in your clear speed.
•Team Composition: Include a mix of damage dealers, healers, and shielders to keep the HP fluctuation beneficial.
•Know Your Enemies: Understand Mek attack patterns to avoid unnecessary HP drops that might not benefit you.
This guide should aid in mastering the Denouement of Sin Domain in Genshin Impact, enhancing your artifact farming strategy.
