What are the best artifact sets for a support Collei in Genshin Impact?

Collei is a 4-star Dendro bow user in Genshin Impact who excels in a support role, providing Dendro application and utility for her team. To build her effectively as a support, you need to focus on her ability to trigger Dendro reactions, provide energy for the team, and enhance overall team performance. HereÔÇÖs a detailed guide on how to optimize Collei for a support role, covering artifact sets, weapons, team compositions, and more.

First, letÔÇÖs discuss the best artifact sets for support Collei. The Deepwood Memories set is the most recommended for her. This set provides a 15% Dendro DMG bonus with its 2-piece effect and reduces the Dendro RES of enemies by 30% for 8 seconds when her Elemental Skill or Burst hits them. This is incredibly valuable for teams that rely on Dendro reactions, as it amplifies the damage output of your main DPS or sub-DPS characters. Alternatively, you can use the Noblesse Oblige set, which increases her Elemental Burst damage by 20% and boosts the entire teamÔÇÖs ATK by 20% for 12 seconds after using her Burst. This is a great option if no one else on your team is using Noblesse Oblige. For a hybrid approach, you can mix 2-piece Deepwood Memories with 2-piece Emblem of Severed Fate to increase her Energy Recharge, ensuring her Burst is available more frequently.

When it comes to artifact main stats, prioritize Energy Recharge on the Sands to ensure Collei can use her Burst consistently. For the Goblet, Dendro DMG Bonus is ideal to enhance her damage output. For the Circlet, you can choose between CRIT Rate or CRIT DMG if you want her to deal more damage, or HP% if you want her to be more durable. Sub-stats should focus on Energy Recharge, CRIT Rate, CRIT DMG, and Elemental Mastery, as these will improve her overall utility and damage.

For weapons, Collei benefits greatly from bows that provide Energy Recharge or Elemental Mastery. The Favonius Warbow is an excellent choice, as it generates energy particles for the team when her CRIT hits land, helping to keep everyoneÔÇÖs Bursts ready. The Sacrificial Bow is another good option, as it has a chance to reset her Elemental Skill cooldown, allowing for more Dendro application. If you want to focus on Elemental Mastery, the Stringless is a strong pick, as it increases her Elemental Skill and Burst damage while also boosting her reaction damage. For free-to-play players, the Recurve Bow is a decent option, as it provides HP regeneration, which can help with her survivability.

In terms of team composition, Collei works well in Dendro-focused teams that rely on reactions like Bloom, Hyperbloom, or Aggravate. Pair her with characters like Nahida, who can provide consistent Dendro application, or Raiden Shogun, who can trigger Hyperbloom reactions. For Aggravate teams, pairing her with Fischl or Yae Miko can be highly effective, as their Electro application will synergize well with ColleiÔÇÖs Dendro. In Bloom teams, characters like Kokomi or Barbara can provide Hydro application to create Dendro Cores, while a Pyro character like Thoma can trigger Burgeon reactions.

One common mistake to avoid is neglecting ColleiÔÇÖs Energy Recharge. Without sufficient Energy Recharge, her Burst will not be available often enough to provide consistent Dendro application and team buffs. Make sure to prioritize Energy Recharge in her artifact sub-stats and consider using weapons like Favonius Warbow to address this issue. Another mistake is using her in teams that donÔÇÖt benefit from Dendro reactions. ColleiÔÇÖs strength lies in her ability to enable Dendro-based reactions, so pairing her with characters who canÔÇÖt take advantage of this will limit her effectiveness.

Advanced techniques for optimizing Collei include timing her Elemental Skill and Burst to maximize Dendro application. Her Elemental Skill, Floral Brush, can be aimed to hit multiple enemies, making it useful for crowd control. Her Burst, Trump-Card Kitty, creates a field that deals Dendro damage over time, so positioning it strategically can ensure maximum damage output. Additionally, using her in combination with characters who have high Elemental Mastery can amplify the damage of reactions like Bloom or Hyperbloom.

In summary, building Collei as a support involves focusing on artifact sets like Deepwood Memories or Noblesse Oblige, prioritizing Energy Recharge and Dendro DMG Bonus in her artifact stats, and equipping her with weapons like Favonius Warbow or The Stringless. Pair her with characters who can take advantage of Dendro reactions, and avoid common mistakes like neglecting Energy Recharge or using her in non-Dendro teams. By following these strategies, you can maximize ColleiÔÇÖs potential as a support character and enhance your teamÔÇÖs overall performance in Genshin Impact.