1) Favonius Lance (ATK: 565 • Energy Recharge: 30.6%)

CRIT Hits have a 60/70/80/90/100% chance to generate a small amount of Elemental Particles, which will regenerate 6 Energy for the character. Can only occur once every 12/10.5/9/7.5/6s.
Note: This weapon is a good generalist option for Yaoyao, providing Energy Recharge with a useful passive.

2) Black Tassel (ATK: 354 • HP: 46.9)

Increases DMG against slimes by 40/50/60/70/80%.

3) Moonpiercer (ATK: 565 • Elemental Mastery: 110)

After triggering Burning, Quicken, Aggravate, Spread, Bloom, Hyperbloom, or Burgeon, a Leaf of Revival will be created around the character for a maximum of 10s. When picked up, the Leaf will grant the character 16/20/24/28/32% ATK for 12s. Only 1 Leaf can be generated this way every 20s. This effect can still be triggered if the character is not on the field.
Note: This weapon can be better than Favonius Lance in teams where Yaoyao has a significant amount of Bloom ownership.

4) Kitain Cross Spear (ATK: 565 • Elemental Mastery: 110)

Increases Elemental Skill DMG by 6/7.5/9/10.5/12%. After Elemental Skill hits an opponent, the character loses 3 Energy but regenerates 3/3.5/4/4.5/5 Energy every 2s for the next 6s. This effect can occur once every 10s. Can be triggered even when the character is not on the field.

1) 4-Pc Deepwood Memories

2-Piece Bonus: Dendro DMG Bonus +15%
4-Piece Bonus: After Elemental Skills or Bursts hit opponents, the targets' Dendro RES will be decreased by 30% for 8s. This effect can be triggered even if the equipping character is not on the field.
Note: This set is the default option in teams where you care about reducing Dendro resistance and nobody else on the team is using it.

2) 4-Pc Tenacity of the Millelith

2-Piece Bonus: HP +20%
4-Piece Bonus: When an Elemental Skill hits an opponent, the ATK of all nearby party members is increased by 20% and their Shield Strength is increased by 30% for 3s. This effect can be triggered once every 0.5s. This effect can still be triggered even when the character who is using this artifact set is not on the field.
Note: This set is a good option in teams where reducing Dendro resistance is not important, such as Yaoyao, Anemo, two Electro damage dealers (Aggravate).

3) 4-Pc Instructor

2-Piece Bonus: Increases Elemental Mastery by 80.
4-Piece Bonus: Upon triggering an Elemental Reaction, increases all party members' Elemental Mastery by 120 for 8s.
Note: Similarly to Tenacity, this set can be a good option in teams where reducing Dendro resistance is not important, or if someone else on the team is already using Deepwood Memories. Do note that Yaoyao has to trigger a reaction on-field to provide the 4pc bonus. Additionally, your stat potential on this set will be limited as it does not come in 5* rarity.

4) Ocean-Hued Clam

2-Piece Bonus: Healing Bonus +15%.
4-Piece Bonus: When the character equipping this artifact set heals a character in the party, a Sea-Dyed Foam will appear for 3 seconds, accumulating the amount of HP recovered from healing (including overflow healing).
At the end of the duration, the Sea-Dyed Foam will explode, dealing DMG to nearby opponents based on 90% of the accumulated healing.
(This DMG is calculated similarly to Reactions such as Electro-Charged, and Superconduct, but it is not affected by Elemental Mastery, Character Levels, or Reaction DMG Bonuses).
Only one Sea-Dyed Foam can be produced every 3.5 seconds.
Each Sea-Dyed Foam can accumulate up to 30,000 HP (including overflow healing).
There can be no more than one Sea-Dyed Foam active at any given time.
This effect can still be triggered even when the character who is using this artifact set is not on the field.
Note: This set is a good option in teams where you on-field Yaoyao and a supportive set is not needed.

5) Maiden Beloved

2-Piece Bonus: Character Healing Effectiveness +15%
4-Piece Bonus: Using an Elemental Skill or Burst increases healing received by all party members by 20% for 10s.

6) +15% Healing Bonus set (2) / +20% HP set (2) / Emblem of Severed Fate (2) [Choose Two]

7) Flower of Paradise Lost

2-Piece Bonus: Elemental Mastery +80
4-Piece Bonus: The equipping character's Bloom, Hyperbloom, and Burgeon reaction DMG are increased by 40%. Additionally, after the equipping character triggers Bloom, Hyperbloom, or Burgeon, they will gain another 25% bonus to the effect mentioned prior. Each stack of this lasts 10s. Max 4 stacks simultaneously. This effect can only be triggered once per second. The character who equips this can still trigger its effects when not on the field.

8) Gilded Dreams

2-Piece Bonus: Increases Elemental Mastery by 80.
4-Piece Bonus: Within 8s of triggering an Elemental Reaction, the character equipping this will obtain buffs based on the Elemental Type of the other party members. ATK is increased by 14% for each party member whose Elemental Type is the same as the equipping character, and Elemental Mastery is increased by 50 for every party member with a different Elemental Type. Each of the aforementioned buffs will count up to 3 characters. This effect can be triggered once every 8s. The character who equips this can still trigger its effects when not on the field.

9) 80 EM (2) + 80 EM (2)*