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Arknights: Should You Pull? Keeper of the Lock & Keys Banner: Mostima!

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Mostima Banner Information

The “Keeper of the Lock & Keys” Banner released alongside the “Code of Brawl” event features the following Operators:

Featured Operators:

Rarity Operator
6★ Rate Up Mostima
5★ Rate Up Waai Fu
Firewatch
4★ Rate Up May
  • 6★ Rate-Ups have a 50% chance of appearing when pulling a 6★
  • 5★ Rate-Ups have a 50% chance of appearing when pulling a 5★
  • 4★ Rate-Ups have a 20% chance of appearing when pulling a 4★
  • Operator Feature Banners do not add Operators to the Distinction shop
Test out your luck for this banner on our:[Keeper of the Lock & Keys] Summon Simulator!

Should You Pull?

Only if you really like these Operators. All of the Operators on this banner are somewhat niche, and you are unlikely to need them for upcoming content. However, all of these Operators are also very strong in their niche. If you are interested in any of them and/or willing to formulate strategies around their niche, you should definitely pull.

Even if you don’t want any of these Operators, it’s not a bad idea to do Headhunt x1 until you pull a 5★ or higher Operator, since one is guaranteed in the first 10 rolls.

Quick Overview

AoE Caster

+ Increases SP gain for allied Casters

+ Strong damage coupled with very powerful crowd-control

- Usual weaknesses of AoE Casters (slow attack speed, high DP cost)

- Long Skill cooldowns and low Skill uptime

Fast-Redeploy Specialist

+ S2 deals instant AoE damage and seals enemy special abilities upon deployment

- Terrible stats

Nuke Sniper

+ Enormous attack range

+ Prioritizes the lowest-DEF enemies within her range

+ Excellent counter to ranged enemy units

+ Damage potential of her S2 is insane if the bombs drop in the right places

- Low attack speed and high DP cost

- Doesn’t prioritize aerial targets

- S2 can be screwed over by RNG, especially if used at the wrong time

Anti-Air Sniper

+ Decent DPS combined with good crowd-control

* Hilarious E2 art

- Abysmal DEF; dies easily when there are ranged enemies on the field

Mostima

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Time’s run out for your enemies—they just don’t know it yet. Mostima controls time itself: slowing her enemies, speeding the SP gain of her allies, stopping foes in place, and rewinding enemy movement. Timely usage of Mostima’s mighty magicks will surely speed you along the road to victory.

Waai Fu

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Most players want to keep their waifu by their side forever, but Waai Fu isn’t interested in staying in one place. As a Fast-Redeploy Specialist, she jumps on and off the battlefield nonstop, dropping her Disruption Kick into groups of enemies to deal damage and disable their special abilities.

Firewatch

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Firewatch’s design may evoke the graceful leaves and branches of a forest, but she’s not afraid to leverage technology against her foes. Her bag of tricks includes a high-tech sniping arbalest, tactical camouflage, and the ability to call in a localized air strike to wipe her opponents off the map!

May

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May is no great shakes at being a detective (although she does rock the silly hat,) but she’s surprisingly skilled at being a Sniper. Her bullets can disable enemy movement at rapid-fire speed; no running off on a wild goose chase while May is on the case!

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About the Author(s)

A 4★ Supporter Operator with the "Writer" tag. Loves creative writing, all forms of editing, video game design, and badgers.

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