Last War Survival Scarlett Guide: Skills, Gear, and Best Use

Scarlett is a Tank Defense hero in Last War: Survival who starts at SSR rarity and can be promoted to UR beginning in Season 3. That promotion is the most important part of her long-term value: SSR Scarlett is mainly a PvE-focused frontline defender, while UR Scarlett gains a much stronger all-purpose defensive kit that can also matter in PvP and advanced Tank formations.

For SSR Scarlett, prioritize T-5 Armor for general combat or Bastion Guard first when you mainly fight monsters. For UR Scarlett, her upgraded defensive Tactics skill should normally come first, followed by her passive Defense skill, with her attack skill last unless you are specifically building the Adam + Scarlett counterattack setup.

Scarlett Overview

At SSR rarity, Scarlett is an accessible defender who stands in front of your damage dealers and absorbs attacks. Her kit is especially effective against monsters, which makes her useful in early campaign progression, World Map PvE, zombie fights, and similar content.

The old advice to abandon Scarlett permanently once Murphy and Williams are developed is now incomplete. That is still reasonable before her promotion, but Season 3 changes the calculation because Scarlett can become UR and receive a reworked skill set.

Last War Scarlett Skill Priority

The best Scarlett skill priority depends on both her rarity and the content you are playing.

Super Sensing is Scarlett’s Expertise effect rather than a normal Skill Medal priority. Do not treat it as a fourth competing skill when deciding where to spend medals.

SSR Scarlett Skills

Before promotion, Scarlett’s kit consists of Flame Burst, T-5 Armor, Bastion Guard, and Super Sensing.

Flame Burst

Flame Burst is Scarlett’s SSR auto attack. Its listed base effect deals Physical Damage equal to 155.10% of her Attack with a four-second cooldown.

Flame Burst contributes useful Physical Damage, but SSR Scarlett is primarily a defender. Improving her survivability is usually more valuable than spending early Skill Medals to squeeze extra damage out of this attack.

T-5 Armor

T-5 Armor is SSR Scarlett’s most dependable general-purpose defensive skill. Its listed base effect increases her Defense by 21% during battle, with star effects improving the bonus further.

Unlike Bastion Guard, T-5 Armor is not restricted to monster battles. That makes it the safest first priority when Scarlett is used across campaign, Arena, general PvE, and occasional PvP.

Bastion Guard

Bastion Guard is what makes SSR Scarlett particularly useful against monsters. Its listed base effect reduces the damage she receives from monsters by 10.30% for seven seconds, with a nine-second cooldown.

At higher development, the duration can match the listed cooldown. That makes Bastion Guard extremely attractive when Scarlett is repeatedly tanking monster damage.

The limitation is equally important: its SSR form is specialized around monsters. That is why T-5 Armor has broader value before promotion.

Super Sensing

SSR Super Sensing increases Scarlett’s HP, Attack, and Defense by 10% each. The HP and Defense components are the most useful for her frontline role.

This is an Expertise effect, so it should not be placed into a normal Skill Medal upgrade order.

How Scarlett’s UR Promotion Works

Scarlett’s SSR-to-UR promotion becomes available during Season 3. Current seasonal progression places her promotion event around Week 3.

To promote her, you need:

• Scarlett at 5 stars as an SSR hero
• A Legendary Hero Badge
• An active promotion window that includes Scarlett

Later seasons have also reopened promotion opportunities for eligible earlier heroes, so missing the original Season 3 window does not necessarily mean Scarlett is permanently locked. Always check the current season interface for the active promotion list.

Under the current promotion rules, a 5-star SSR Scarlett converts to a 3-star UR hero. Skill Medals previously invested in the SSR version are refunded so they can be reassigned after her skills change.

Scarlett UR Skills and Priority

UR Scarlett receives a reworked skill set. Current hero data lists the UR skills as Inferno Strike, Flame Barrier, Armored Shell, and an upgraded Super Sensing.

Flame Barrier — First Priority

Flame Barrier is UR Scarlett’s most important general defensive skill. Instead of relying on monster-only protection, it reduces damage taken by Scarlett and one adjacent unit and also provides additional protection through its secondary effect.

This is a major reason UR Scarlett is more useful in PvP than her SSR version. The skill is no longer dependent on the target being classified as a monster.

Positioning matters because only one adjacent hero receives the shared protection. If more than one qualifying adjacent unit is present, the game’s targeting rules determine which hero receives the benefit. Check battle reports when optimizing a specific formation.

Armored Shell — Second Priority

Armored Shell greatly increases Scarlett’s own Defense and also increases the Defense of one adjacent ally. Current max-level reference data places the effect at roughly 74.5% Defense for Scarlett and 37.2% for the adjacent hero.

That shared protection is one of the biggest upgrades over the SSR version of T-5 Armor. Scarlett is no longer only making herself harder to kill; she can help keep another strategically important hero alive.

Inferno Strike — Third Priority for Standard Builds

UR Scarlett’s offensive skill remains Physical Damage. For a traditional defender build, damage comes after Flame Barrier and Armored Shell because Scarlett has to survive before her offensive contribution matters.

There is one major exception: Adam + Scarlett. In that hybrid formation, Scarlett’s Physical Damage and attack frequency become much more important, so Inferno Strike deserves significantly more investment after the two defensive skills reach useful levels.

UR Super Sensing

UR Scarlett receives the standard stronger UR Expertise package: HP, Attack, and Defense increase by 20%, with an additional 10% skill cooldown-speed bonus.

The cooldown component improves the frequency of her active defensive effect, which is another reason promotion improves her general battle performance rather than merely increasing raw stats.

SSR vs UR Scarlett: What Actually Changes?

Best Gear for Scarlett

Standard Scarlett builds should prioritize survival. Armor and Radar are the two most important gear categories because the front row must remain alive long enough for the back row to deal damage.

The exact order between Armor and Radar depends on what is killing Scarlett. If Energy Damage and critical skill damage are the problem, Radar can be the better first upgrade. If general frontline durability is the problem, Armor is equally important.

Early-Game Gear

Do not over-upgrade temporary M3 gear. Equip it for the immediate stats, then preserve Upgrade Ore for equipment that will stay relevant after your early progression stage.

Epic Gear for Scarlett

Standard Scarlett Gear Priority

1. Radar or Armor, based on the incoming damage problem
2. The other defensive piece
3. Data Chip
4. Cannon

If Scarlett is being used in the Adam hybrid and is already surviving comfortably, offensive gear becomes more important because that formation is designed to extract significantly more damage from her Physical attacks.

Should UR Scarlett Get Legendary Gear?

UR Scarlett can justify much better gear than her SSR version, especially when she is a permanent part of your first squad. However, gear priority still depends on the formation you actually run.

If Scarlett is only a temporary pre-Season-3 defender, Murphy or Williams should generally receive your best long-term defensive upgrades first. If Scarlett has already become UR and replaced Williams in an active formation, investing in her gear is much easier to justify.

Best Position for Scarlett

Scarlett belongs on the front row in normal formations. Her defensive skills, HP, Defense, and damage-reduction mechanics are wasted if she sits behind another defender without a specific strategic reason.

For SSR Scarlett, place your stronger primary tank beside her. For UR Scarlett, consider which hero is adjacent to her because part of her defensive value can be shared with that unit.

Best Scarlett Teams Before UR Promotion

Early Tank Formation

This is a temporary progression formation. Scarlett and Violet absorb damage while Kimberly and Mason provide most of the offensive output.

Murphy + Scarlett Budget Tank Team

This is one of Scarlett’s simplest early uses. Murphy supplies stronger general protection while Scarlett adds another durable body to the front row.

UR Scarlett in Tank Teams

After promotion, Scarlett becomes a legitimate alternative rather than an automatic bench hero. Her ability to reduce damage for herself and an adjacent unit can be valuable in Tank squads that need more protection around a key carry.

A conventional Tank formation can still use:

• Front: Murphy + UR Scarlett
• Back: Kimberly + Stetmann + Marshall

The best five heroes change as Exclusive Weapons, Tactics Cards, Awakening, and seasonal systems become available, so Scarlett should be evaluated against the version of Williams, Stetmann, Mason, or other alternatives on your own account rather than from rarity alone.

Adam and Scarlett Tank Lineup

The GSC query around Adam and Scarlett reflects a more advanced strategy that becomes possible after Scarlett reaches UR. Adam is a Missile defender whose Counter Defense mechanics can create strong counterattack synergy with Scarlett’s Physical Damage.

The important idea is that UR Scarlett is no longer merely trying to survive. In the Adam setup, her slow but meaningful Physical attacks become a larger part of the team’s damage output.

Why Adam Works With UR Scarlett

• Adam’s counterattack mechanics can increase the value of Scarlett’s attack cycle.
• Scarlett deals Physical Damage, which creates different matchup pressure from Kimberly’s Energy Damage.
• UR Scarlett can protect herself and an adjacent hero.
• The setup can be particularly useful when trying to improve a Tank squad’s matchup into Aircraft formations.

This is not a beginner lineup. It becomes more attractive once Scarlett is UR, Adam is properly developed, and your gear can support a less conventional formation.

Typical Adam + Scarlett Structure

A commonly tested structure uses Scarlett and Kimberly as the two front-row heroes, with Adam, Murphy, and Marshall behind them. Exact positioning can matter because Scarlett’s UR protection targets an adjacent hero and because different enemy formations attack different slots.

Do not copy one fixed placement permanently. Test battle reports against Tank, Aircraft, and Missile opponents and move Scarlett or the protected carry when a matchup changes.

Scarlett Skill Priority With Adam

Start with UR Scarlett’s defensive skills because a dead Scarlett produces no counterattack value. Once Flame Barrier and Armored Shell are strong enough to keep her alive, Inferno Strike becomes much more valuable than it is in a standard defender build.

Players committing heavily to this strategy will eventually want all three UR combat skills developed rather than leaving the auto attack far behind.

Best Uses for Scarlett

Campaign and Monster PvE

SSR Scarlett remains particularly efficient here because Bastion Guard directly addresses monster damage. Pair her with attackers who already have enough DPS but need more time to finish the fight.

Accessible partners can include Kimberly and Mason, while Monica can join when her farming bonus is relevant to the selected World Map target.

Arena and PvP

Do not judge UR Scarlett by the weak PvP reputation of the SSR version. Promotion changes her defensive mechanics so the important protection is no longer restricted to monsters.

That said, UR does not make Scarlett automatically best in every Tank team. Your Williams level, Exclusive Weapons, Adam investment, gear distribution, and enemy composition all influence whether she earns the slot.

Scarlett Strengths and Weaknesses

Is Scarlett Worth Upgrading?

Yes, but the answer depends heavily on your season.

Pre-Season to Season 2

Invest enough for Scarlett to perform her current frontline role. If you intend to play Tanks long term, collecting Scarlett-specific shards is more valuable than older guides suggested because she needs five stars for her Season 3 promotion.

Preparing for Season 3

Five-star Scarlett becomes a real progression objective if you want her UR version. Use Scarlett-specific shards whenever possible and be deliberate with universal SSR shards rather than spending them automatically.

After UR Promotion

Reassess her completely. UR Scarlett is not simply an SSR hero with better stats; her defensive mechanics change. If she joins your first squad, rebuilding her important skills and transferring suitable gear should become an immediate priority.

F2P and Low-Spender Advice

Scarlett’s promotion path makes her more attractive to Tank-focused F2P players than a normal temporary SSR defender. However, that does not mean every universal shard should go to her. Balance the five-star requirement against Mason, Violet, and other heroes whose seasonal progression also depends on SSR resources.

If you would rather start with an established roster, you can optionally compare a Last War account for sale; otherwise, planning Scarlett’s Season 3 promotion through normal progression is a viable long-term Tank strategy.

When Should You Replace Scarlett?

For SSR Scarlett, replace her in your main competitive formation when a sufficiently developed UR defender clearly performs better. A new one-star hero should not automatically replace a five-star Scarlett with developed skills and gear.

Possible early partners or replacements include Murphy and Williams. Budget alternatives during earlier progression can include Violet, Richard, or Gump depending on development.

After promotion, the question changes from “when should I replace Scarlett?” to “does UR Scarlett outperform my current Williams or hybrid alternative?” Use battle reports rather than automatically following an old pre-Season-3 tier list.

Common Scarlett Mistakes

Following an SSR Skill Priority After Promotion

UR promotion changes Scarlett’s skills. Rebuild her around the UR effects rather than blindly following the old Bastion Guard/T-5 Armor descriptions.

Treating Super Sensing as a Normal Skill Medal Target

Super Sensing is an Expertise effect. Your normal medal decision is between Scarlett’s three combat skills.

Ignoring the Season 3 Promotion

Older advice that describes Scarlett as purely temporary is outdated. Tank players should account for her Season 3 UR route before deciding that every Scarlett shard has no future value.

Spending Heavily on Flame Burst Before Scarlett Can Survive

SSR Scarlett is a defender first. T-5 Armor and Bastion Guard normally solve more progression problems than additional personal damage.

Using SSR Bastion Guard as if It Were a PvP Skill

Its pre-promotion value is tied to monster protection. Scarlett becomes considerably more flexible only after the UR skill rework.

Ignoring UR Adjacency

UR Scarlett can protect another nearby hero. Formation placement therefore affects how much value you receive from the promotion.

Over-Upgrading Temporary M3 Gear

Use early equipment for the base stats, but save Upgrade Ore for pieces that remain useful after your account progresses.

Copying Adam + Scarlett Without the Required Investment

The hybrid can be strong, but an underdeveloped Adam and poorly geared Scarlett can perform worse than a straightforward Tank lineup.

FAQs

What is the best Scarlett skill priority in Last War?

For SSR Scarlett in general combat, prioritize T-5 Armor, then Bastion Guard, then Flame Burst. For monster-focused PvE, put Bastion Guard first. Super Sensing is an Expertise effect rather than a normal Skill Medal priority.

What is the best Scarlett UR skill priority?

For a standard UR defender build, prioritize Flame Barrier first, Armored Shell second, and Inferno Strike third. In an Adam + Scarlett hybrid, Inferno Strike becomes more important once her defensive skills are sufficiently developed.

When does Scarlett become UR?

Scarlett’s SSR-to-UR promotion becomes available beginning in Season 3. She needs to be five-star SSR and you need the required Legendary Hero Badge during an eligible promotion window.

Is UR Scarlett better than SSR Scarlett?

Yes. Promotion increases her rarity and changes her defensive kit so important effects can work in general combat instead of being restricted mainly to monster PvE. UR Scarlett can also protect an adjacent ally.

Is Adam and Scarlett a good Tank lineup?

It can be a strong advanced hybrid after Scarlett becomes UR. Adam’s counterattack mechanics improve the value of Scarlett’s Physical attacks, but the formation requires good skills, gear, and positioning and should not be treated as an automatic upgrade for every account.

Should I use universal SSR shards on Scarlett?

Use them selectively. Five-star SSR Scarlett is required for her UR promotion, so Tank-focused players may reasonably invest in her. However, universal shards also compete with other seasonal SSR-to-UR heroes, so Scarlett-specific shards are preferable whenever available.

Conclusion

Scarlett’s best build depends on where your server is in progression. As an SSR hero, she is a strong early PvE defender whose priority is T-5 Armor for general use or Bastion Guard against monsters. Season 3 changes her long-term value by allowing her to promote to UR and gain a broader defensive kit that protects both herself and an adjacent hero.

Prepare for the promotion if Scarlett fits your Tank plans, rebuild her UR skills after upgrading, and only commit to advanced setups such as Adam + Scarlett when your gear and supporting heroes are ready. For more current hero builds, squad advice, and seasonal strategies, explore our latest Last War Survival guides.