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: With this weapon, try to aim for some Crit Rate stats to trigger the weapon passive reliably.

2) Engulfing Lightning (ATK: 608 • Energy Recharge: 55.1%)

ATK increased by 28/35/42/49/56% of Energy Recharge over the base 100%. You can gain a maximum bonus of 80/90/100/110/120% ATK. Gain 30/35/40/45/50% Energy Recharge for 12s after using an Elemental Burst.

3) "The Catch" (ATK: 510 • Energy Recharge: 45.9)

Increases Elemental Burst DMG by 16/20/24/28/32% and Elemental Burst CRIT Rate by 6/7.5/9/10.5/12%.

4) Prototype Starglitter (ATK: 510 • Energy Recharge: 45.9%)

After using an Elemental Skill, increases Normal and Charged Attack DMG by 8/10/12/14/16% for 12s. Max 2 stacks.

5) 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.
Note: Although the EM main stat isn't useful for Yun Jin, the passive decreases her Energy Recharge requirements by a lot, especially at higher refinements. It can reduce her ER% reqs depending on refinement. Note that she must cast Elemental Burst first before Skill, as the passive drains 3 energy initially when Skill is cast. This weapon can be left at level 1 while still getting full effect from the passive.

1) Husk of Opulent Dreams

2-Piece Bonus: DEF +30%
4-Piece Bonus: A character equipped with this Artifact set will obtain the Curiosity effect in the following conditions: When on the field, the character gains 1 stack after hitting an opponent with a Geo attack, triggering a maximum of once every 0.3s.
When off the field, the character gains 1 stack every 3s. Curiosity can stack up to 4 times, each providing 6% DEF and a 6% Geo DMG Bonus. When 6 seconds pass without gaining a Curiosity stack, 1 stack is lost.

2) Husk of Opulent Dreams (2) + Emblem of Severed Fate (2)

3) Noblesse Oblige (4)

2-Piece Bonus: Elemental Burst DMG +20%
4-Piece Bonus: Using an Elemental Burst increases all party members' ATK by 20% for 12s. This effect cannot stack.