SI OPERATOR SHOWCASE: EVERY SKILL IN HER OFFICIAL KIT
Table of Contents
Si is a 6-star Cryo Supporter from the Hongshan Academy of Sciences, voiced in English by shoushouwong. Her official 58-second showcase, posted on October 6, 2026, confirms a kit built on stored Fixed DMG, a decoy called the Inksoul and a team-wide Cryo and Heat Amp. She headlines Version 1.6 Sanctuary of Ink from October 15 to November 5, 2026.
This post goes through the showcase card by card: the profile facts first, then each skill with Gryphline’s English card text quoted word for word and what it means when you play her. For the full 1.6 schedule and the three demo teams from the livestream, see our Sanctuary of Ink recap.
How we checked this. Every quote below was read off the frames of the official Short on the Arknights: Endfield YouTube channel (uploaded 6 October 2026, 20:00 PT). The video carries Gryphline’s note that it “is from a work-in-progress build and may differ from the final game.”
Official video from the Arknights: Endfield YouTube channel. © Gryphline.
TL;DR
- Profile: 6-star Supporter, Cryo, Hongshan Academy of Sciences, race undisclosed, birthday September 15, English voice by shoushouwong.
- Artful Intent is the core. Her battle skill marks a target, records part of the damage it takes, then dumps that total as Fixed DMG over a large area when the mark expires.
- The Inksoul is a second body. Recast the battle skill to pull it out of the marked target. Everything that hits the Inksoul, damage and effects, also hits the host.
- Team Position 1 matters twice. Her battle skill copies slot 1’s element, and her ultimate cuts slot 1’s combo cooldown.
- She buffs Cryo and Heat. Her combo fires off consumed or absorbed Cryo or Heat inflictions, and her ultimate gives the whole team Cryo Amp and Heat Amp.
Si’s Profile Card
Si’s profile card from the showcase. © Gryphline.
| Field | Value on the card |
|---|---|
| Rarity | 6-star |
| Class | Supporter |
| Element | Cryo |
| Faction | Hongshan Academy of Sciences |
| Race | Undisclosed |
| Date of birth | Sept. 15 |
| English voice | shoushouwong |
Two details stand out. The card lists her race as Undisclosed, although the story treats her as one of the Sui, the Feranmut Proxies (our Feranmut explainer covers what that means). And it ties her to the Hongshan Academy of Sciences, not to Endfield Industries. The voice line in the label reads “Englisch,” a typo on the official card, so the credit is for her English voice.
The Short’s YouTube caption is her own line: “Hmph. Only think of me when trouble shows up?”
Basic Attack: Artistic Urge
Artistic Urge. © Gryphline.
“Artistic Urge: Si can perform up to 5 basic attack sequences, dealing Cryo DMG to enemies. When performing a finisher on an enemy, Si deals massive Cryo DMG and restores some SP.”
What it means: a standard five-hit chain. The useful part is the finisher’s SP refund, which feeds her battle skill, the skill her whole kit runs through.
Battle Skill: Brushwork Realm
Brushwork Realm. © Gryphline.
“Deals DMG and applies Artful Intent to the target, also applies infliction of the same element as the operator in the first position of the team. Artful Intent records part of the DMG taken by the target, and upon expiring, deals Fixed DMG equal to the DMG recorded over a large area. Casting the battle skill again pulls an Inksoul from the target inflicted with Artful Intent. All DMG dealt to the Inksoul and effects applied to it will also be dealt to its host (the said target).”
What it means:
- Artful Intent turns single-target damage into area damage. Pour damage into one elite and, when the mark ends, part of it lands on everything nearby as Fixed DMG. At the 1.6 livestream the developers said this burst ignores DEF, RES and damage reduction.
- The infliction depends on your slot 1. The card says the infliction matches “the operator in the first position of the team.” With a Heat operator in slot 1, Si applies Heat; with any other element there, she applies Cryo. This is the rule that let her slot into Laevatain teams in the livestream demo, and it explains why early leaks called her a Heat operator.
- The Inksoul is a proxy target. Once pulled out, anything you hit it with, inflictions included, is also dealt to the host. That lets you keep damaging a boss that teleports away, and skills cast on the Inksoul can interrupt the host’s charge from range. The livestream also showed the battle skill splitting into Initial Stroke and Final Stroke steps; the showcase card condenses them into “casting the battle skill again.”
Combo Skill: Fully Envisioned
Fully Envisioned summons the Ink Lung. © Gryphline.
“COMBO TRIGGER: When an enemy’s Cryo Infliction or Heat Infliction is consumed or absorbed. Si summons an Ink Lung that deals massive DMG. The DMG of its final attack sequence is increased based on the number of stacks consumed or absorbed.”
What it means: her combo is fed by teammates. Any Cryo or Heat reaction that consumes stacks, or a skill that absorbs them, triggers it, and the more stacks went in, the harder the last hit lands. That is why the developers called her a Supporter “with decent damage”: in a Cryo or Heat team that consumes four stacks at a time, the Ink Lung becomes a real damage source.
Ultimate: No One Spoils the Fun
The Giant Ink Lung. © Gryphline.
“Si summons a Giant Ink Lung from her painting that deals Cryo DMG and grants temporary Cryo Amp and Heat Amp to the entire team; also shortens combo skill cooldown for the operator in the first position of the team.”
What it means: this is the support half of her kit. Cryo Amp and Heat Amp go to the whole team, so she raises both Cryo carries and Heat carries. The cooldown cut goes to whoever is in slot 1. Put Si there and her own combo comes back faster, which is how the livestream demo got two Ink Lung attacks in a row. Put a Heat main DPS there and that operator’s combo cycles faster instead.
One wording difference. The 1.6 livestream showed the slot 1 combo cooldown cut on her talent, Proxy’s Patronage, which triggers after her ultimate. The showcase card folds it into the ultimate’s description. In play it means the same thing: cast the ultimate, slot 1’s combo cooldown drops. We will confirm the final split from the in-game text after launch.
Idle Animation
Si’s idle animation preview. © Gryphline.
The showcase ends on her idle pose: a small ink Lung that curls around her, rests against her side and drifts off-frame. It is the same Lung the combo skill and ultimate summon, painted out of her brushwork.
What the Showcase Does Not Show
- No numbers. The cards give no multipliers, durations or SP costs. Those arrive with the in-game text on October 15.
- No talents or potentials. Her talent, Proxy’s Patronage, and her potential upgrades are not on the showcase cards.
- No teams. For the three demo teams (Si as the main damage dealer, Si with Laevatain, Si with Yvonne), see the Sanctuary of Ink recap.
- A work-in-progress build. Gryphline flags that the footage may differ from the final game.
Si’s Banner and Where to Read Next
Si is the featured 6-star on the [Rejuvenation] Chartered Headhunting banner from the Version 1.6 launch on October 15, 2026 until November 5, 2026 at 11:59 server time. Argent Flow follows in the second half of the version. Plan your pulls with the pity calculator.
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