Arknights: Endfield Si Best Build Guide – Weapons, Gears, Teams and More

Si Skill Kit & Playstyle Analysis

General Introduction

Si is a 6-Star Supporter Agent of the Cryo element that specializes in dealing Cryo damage to enemies while providing amazing Cryo and Heat buffs to allies and also inflict multiple powerful debuffs and amazing effects on enemies to optimize the team’s damage against enemies.

Skill Analysis & Leveling Priority

Playstyle Guide & Rotation

Upon using her battle and combo skill, Si can apply the immobilization and Artful Intent debuff on enemies, allowing the team to deal powerful damage to enemies. Si’s battle skill allows her to apply the Artful Intent debuff on enemies, which records the damage taken by enemies over a period of time and deal powerful damage to enemies proportional to the amount when it expires. Additionally, this skill also allow Si to apply an Elemental Infliction on the enemy based on the element of the 1st Operator in the team. Si’s 2nd stage Battle Skill allows her to summon an Ink Soul from the enemies, allowing the team to deal damage to the Ink Soul and all damage taken by the Ink Soul is transferred to the enemy. Si’s 3rd stage Battle Skill allow her to destroy the Ink Soul early, triggering a powerful explosion effect similar to the Artful Intent damage effect. Whenever the enemy’s Heat or Cryo Infliction is consumed, Si uses her Combo Skill, summoning a powerful Lung and dealing powerful Cryo damage to enemies.

Finally, upon using her Ultimate, Si will summon a Lung on the battlefield that deals periodic Cryo damage to enemies in addition to providing the entire team with Heat and Cryo Amp effect and shorten the Combo Skill Cooldown of the Operator in the 1st slot, allowing her to massively boost the team’s damage output and shorten the DPS’ damage rotation downtime.

Si Best In Slot Weapons

As a Cryo Support Character, Si wants weapons that can help optimize her support effects for the entire team.

Si Best Weapons Choices

Some of Si’s Best Weapon Choices are:

Jade Vessel	Long Heritage	Khravengger
6* Weapon	6* Weapon	6* Weapon

	Main Stat: 505 Attack
	Sub Stat: 156 Intellect
	Sub Stat: Cryo Damage Dealt +43.3%
Jade Vessel	Weapon Rating: Best Premium Weapon
Effect: Boosts ATK.When the wielder applies Immobilization on the enemy, the target enemy suffers increased DMG for a certain duration.When the wielder applies Immobilization on the enemy or after the wielder casts an ultimate, the next combo skill cast within a certain period deals increased DMG.
Explanation: Si’s signature weapon and her best in slot, providing her with her much needed stats and allows her to amplify the damage taken by all enemies.

	Main Stat: 505 Attack
	Sub Stat: 156 Intellect
	Sub Stat: Cryo Damage Dealt +43.3%
Long Heritage	Weapon Rating: BP Alternative Weapon
Effect: Boosts Main attribute.When the wielder’s battle skill applies Cryo Infliction or Heat Infliction, Cryo DMG dealt is increased for a certain duration. When the wielder grants Arts Amp to other operators in the team, the entire team’s Arts DMG dealt is increased for a certain duration.
Explanation: Si’s battlepass alternative option that allows her to boost her own damage and boost the entire team’s arts damage output.

	Main Stat: 495 Attack
	Sub Stat: 156 Strength
	Sub Stat:  Attack +39%
Khravengger	Weapon Rating: Good Alternative Weapon
Effect: Skill DMG Dealt +32.0% (for every skill). When the wielder’s battle skill applies Cryo Infliction, the wielder gains Cryo DMG Dealt +16.0% for 15s. When the wielder deals combo skill DMG to an enemy with Cryo Infliction, the wielder gains Cryo DMG Dealt +32.0% for 15s. The two effects apply separately and do not stack with themselves.
Explanation: A good Alternative Weapon for Si that boost her damage output whenever she inflict Cyro Infliction onto enemies.

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Si Best Gear Sets

Si Best Gears Set

The best main gear set for Si is the 3-pcs Eternal Xiranite set, which allows Si to amplifies the team’s damage even further when she apply Cryo and Heat Amp buffs on allies.

	Eternal Xiranite
3-pc: Wearer’s HP +1000. After the wearer applies Amp, Protect, Susceptibility, or Weaken, other teammates gain DMG Dealt +16% for 15s. This effect cannot stack.

Si Best Main Stats & Sub Stats

As a Support Character for the Cryo and Heat teams, Si wants as much Cryo stats as possible in addition to some Ultimate Gain Efficiency stats.

Her preferred stats are as followed:

To Be Updated

Important Stat Threshold:

– Si’ most important stat is her Intellect stat, which boosts her Attack massively as it is her main primary main stat. Therefore, players should focus on boosting this stat to as high as possible.

(This Will Be Updated With More Details Later)

Si Best Teams 

Si’s best teams are teams that can take advantage of her amazing Heat and Cryo amplification effects or her amazing ability to apply Any Elemental Infliction to enemies.

Si Heat Team

Laevatain	Arcane	Si	Camille
Main DPS	Sub DPS/ Support	Support	Support
Essential	Essential	Flexible	Flexible

This is Si’s premium Heat team, with Laevatain being able to take full advantage of Si’s amazing ability to apply Heat Infliction on enemies with her in the first slot. Both Si and Arcane provide Laevatain with her much needed heat Infliction stacks on the enemies while also amplifying her damage output, meanwhile Camille can apply susceptibility onto enemies and provide the team with SP needed to use their skills, helping to optimize the team’s damage and rotation. Arcane can be replaced in this team if players want to use a sustain character in harder contents that require healing.

Si Cryo Team

Yvonne	Tangtang	Si	Arcane
Main DPS	Sub DPS/ Support	Support	Sub DPS/ Enabler
Essential	Essential	Essential	Essential

This is Si’s premium Cryo team, with Yvonne taking full advantage of Si’s amazing ability to apply Cryo infliction onto enemies and amplifying her damage output. Additionally, Si’s ability to transfer damage to enemies whenever the team attacks her Artful Intent helps to mitigate Yvonne’s need of a crowd control operator, allowing her to deal damage to multiple enemies at once. Arcane and Tangtang work to apply more Cryo Infliction stacks onto enemies and inflict powerful debuffs onto enemies, helping to optimize Yvonne’s damage output. Please note that this team might be hard to function due to a lack of a Vanguard Operator and players can also replace Arcane or Tangtang with a sustain character when doing harder contents that need healing.

Conclusion

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