Kjera might look calm and composed, but don’t be fooled—she’s a powerful 5-star Mech-Accord Caster who can lock down and eliminate enemies with a surprising amount of control. Introduced as the welfare Operator during the Break the Ice event, Kjera brings a unique style of Arts damage to Arknights through her drone companion, which scales damage the longer it focuses a target. She combines consistent DPS with crowd-control elements, and fits comfortably into teams looking for safe, scalable ranged Arts output.

Unlike burst-focused Casters in this strategy game, Kjera’s approach is more methodical. She doesn’t hit the hardest with her basic attacks, but thanks to a short attack interval and the ramping power of her drone, she becomes more dangerous the longer a fight goes on. With the right setup, she can rival even Core Casters of similar rarity—and she’s free, making her a great pickup for new and returning players alike.

Operator Overview

Kjera belongs to the Mech-Accord branch, meaning she attacks in tandem with a drone. This drone deals Arts damage that starts at 20% of her ATK and increases by 15% each consecutive hit on the same target, up to a maximum of 110%. Combined with her fast attack rate, this mechanic gives her impressive sustained DPS, especially against stationary or slow-moving enemies. Additionally, instead of banners or gacha, Kjera is obtained through her guidebook, or Record Restoration.

This system rewards targeting consistency. The longer her drone can focus on one enemy, the better her damage gets. It also makes her a natural fit for bosses or mini-bosses that stay within range for extended periods. Just be aware that any forced retargeting will reset the ramp-up, so careful positioning and control are key.

Talent: Deference

Kjera’s talent adds more depth to her positioning strategy. Deference boosts her ATK by a flat amount—+10% at Elite 2—but this jumps to +16% if there are two or more ground tiles within her attack range. That second condition is easy to meet on most maps, especially with flexible placements or tight lane setups.

This bonus affects both Kjera and her drone, making it especially valuable in stages where you can predict enemy movement and place her near melee-heavy paths. When planning your team, prioritize deployment zones that let her capitalize on this conditional bonus for consistent extra damage.

Skills Overview

Kjera has two solid skills, each suited to a different kind of fight. One is pure DPS, while the other adds crowd-control potential and better uptime for extended fights.

Skill 1: ATK Up γ

This is Kjera’s basic DPS skill. It gives her a significant ATK boost—up to 100% at max level—for 30 seconds. It’s simple, reliable, and very beginner-friendly.

• Strong ATK multiplier (scales to +100%)
• Good uptime with manageable cooldown
• Applies to both her and her drone’s base damage

Use this skill when you want consistent output and don’t need any debuffs or utility. It’s great for wave clearing or backing up frontliners during mid-stage combat.

Skill 2: Unrestrained Heart

Her second skill is where Kjera really shines. Activating Unrestrained Heart summons a second drone, boosts her ATK by up to 55%, and gives both her and her drones a chance (22%) to apply Cold on each attack. Cold slows down enemies, and if stacked, can freeze them—making this skill an excellent hybrid of damage and control.

One of its best features is that the drones lock onto an enemy and continue attacking even after it leaves her range. They’ll keep firing until the target dies or the skill ends, giving her a way to harass and finish off escaping threats.

In addition, Unrestrained Heart has several key benefits:

• Spawns a second drone during the skill’s duration
• ATK boost for Kjera and drones
• 22% chance to inflict Cold per hit
• Drone lock-on persists even outside her attack range

This skill is perfect for high-HP enemies or when you need extra pressure on dangerous targets while dealing with other enemies. The Cold effect also gives her some soft crowd control, which can help stall aggressive mobs or buy time for your frontline.

How to Build Kjera: Skills, Modules, and Synergy

Kjera might be a welfare unit, but her scaling and utility make her a long-term investment. Here’s how to get the most value out of her.

Promotion and Skill Priorities:

Kjera follows a similar upgrade path for most Arknights operators. For promotion, you’ll want to reach Elite 2, since it’s required to unlock the full ATK bonus from Deference and gives access to stronger skill scaling

As for skills:

• First: Unrestrained Heart (S2) – better versatility and long-term performance
• Second: ATK Up γ (S1) – solid for simpler stages or early progression

And when it comes to mastery, M3 on S2 is worthwhile if you use her often in CC or late-game boss fights

Module: In the Woolen of Snow (FUN-Y)

Kjera’s Operator Module raises her drone’s maximum damage scaling to 120% and gives her additional HP and ATK. Once upgraded, it also improves Deference, making it easier to reach meaningful ATK thresholds.

Modules aren’t mandatory early on, but this one is a strong boost if you’re planning to main Kjera in tougher stages.

Team Synergy and Positioning

Since Kjera thrives on locking onto a target for as long as possible, she pairs well with operators that help her do exactly that. Defenders who can hold enemies in place or Operators who slow down targets can extend her DPS window, letting her drone ramp up damage faster.

She also benefits from operators who lower enemy RES or apply Freeze, as they combine well with the Cold effect from S2. Lastly, anyone who buffs ATK or ASPD can indirectly scale her drone’s effectiveness.

Recommended Synergy:

• Slowers like Angelina or Istina: Extend Cold durations and reduce escape chances
• Freezers like Gnosis: Stack control effects for guaranteed freezes
• Tanky Defenders like Saria: Pin enemies down for drone lock-on consistency
• ATK Buffers like Warfarin or Shamare: Boost her and her drone’s base damage

Just be mindful of where you place Kjera. Her talent depends on having melee tiles in her range, so scout your map layout and pick deployment zones that let you meet that condition without sacrificing coverage.

Kjera is a quiet powerhouse. With her slow-building drone pressure, Cold debuff potential, and reliable team-friendly setup, she punches far above her weight for a welfare unit. Whether you’re running her for consistent lane control or strategic boss damage, she has the tools to deliver—especially when placed and built smartly.

For even better map control and precise drone management, make sure to play Arknights on PC with BlueStacks. The better visuals and fast response time make it easier to position her correctly, time your skills, and keep your drone pressure steady through even the trickiest stages.