Last Asylum Plague: Best Hero Upgrade Guide & More

Hello everyone, In Last Asylum: Plague, hero upgrades are one of the biggest factors that decide how fast you progress. Since EXP, hero shards, skill materials, and gear resources are limited, players should not upgrade every hero evenly. A focused upgrade path will usually give better results than spreading resources across the whole roster. Next I wil show you how to better arrange the upgrade progress.

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What is the Core Upgrade Rule?

The most important rule is simple: a fully upgraded A-tier hero is often more useful than a half-built S-tier hero. This is because hero strength in Last Asylum: Plague depends not only on rarity, but also on level, star rank, skills, and gear investment. I recommends building the main tank first, then the main damage dealer, and only after that moving to support and flex heroes.

Order	Recommend
Main Tank	Arthur / Bella
Main DPS	Marlena / Grenwald
Support or Utility Hero	Stellar / Claire / other useful units

 

Which Hero to Upgrade First?

Arthur — Best Defensive Core

Arthur is widely regarded as one of the best tanks in the current version. He is a team-protection tank rather than a self-only frontliner. Arthur improves team survivability, which is especially important in harder PvE stages and long fights. If your frontline collapses early, even strong DPS heroes cannot deal enough damage.

Upgrade Focus:

Level	raise him before most other heroes
Star rank	invest shards when available
Skills	prioritize defensive and shielding skills
Gear	armor and boots first, then weapon/gloves

Marlena — Best Main Carry

Marlena is usually ranked together with Arthur in S tier. She is a hero with very high damage and strong scaling with upgrades. Marlena is suitable as the main carry of the team. She can help players clear stages faster, defeat priority enemies, and improve damage output in boss-type content.

Upgrade Focus:

Level	keep close to or equal with your main tank
Star rank	very high priority
Skills	prioritize main damage skills
Gear	weapon and gloves first

Bella — Best SSR Tank Alternative

Bella is listed as an A+ or A-tier tank in several guides. If you do not have Arthur, Bella is one of the safest heroes to build because she fills the same basic frontline role. Bella is recommended for F2P and low-spending players who need a reliable frontline hero before obtaining or fully building Arthur.

Grenwald — Strong SSR Damage Dealer

Grenwald is commonly placed in the A/A+ tier and is often recommended as a strong SSR damage option. Treat Grenwald as the main damage dealer if Marlena is not available. Grenwald is good for players who need damage quickly but do not yet have a fully built UR carry.

Grifith — Durable Utility Tank

Grifith appears in A/A+ tier lists as a Ranger Tank. He is not usually prioritized above Arthur or Bella as the first tank, but he can become valuable when players need extra durability or mode-specific utility.

 

Hero Upgrade Priority by Player Type

Type	Route	Path
F2P / Low-Spender	The safest route is to build a stable frontline first. F2P players can still obtain UR heroes through UR shards from sources such as the Alliance Shop, quests, and events, but this takes time	Build Bella if Arthur is not available. Build Grenwald if Marlena is not available. Save UR shards for Arthur and Marlena. Do not over-invest in weak low-tier heroes.
Mid-Spender	Mid-spenders should still avoid upgrading too many heroes at once. The main difference is that they can more actively chase Arthur and Marlena through limited banners, events, and shard sources.	Arthur first. Marlena second. Bella or Grifith as secondary frontline. Grenwald as backup DPS or second-team carry.
Heavy-Spender / Competitive	For players focusing on high-end modes such as Rat Swarm ranking or alliance competition, star ranks and gear quality become much more important. Packsify’s Rat Swarm guide states that upgrading Arthur and Marlena’s star ranks gives one of the biggest power increases for that mode.	Max Arthur’s star rank and defensive skills. Max Marlena’s damage output. Invest in Legendary gear Build specialized teams for Rat Swarm and boss content.

 

What is Skill Upgrade Strategy?

Skill materials should be treated as high-value resources. Do not upgrade every skill equally unless the hero is one of your long-term core units.

Type	Advice	Priority
Tanks	Upgrade defensive skills first. Arthur’s value comes from team protection, shields, and damage reduction, so defensive skills should be prioritized	Shield / damage reduction HP or defense scaling skills Control or secondary damage
DPS Heroes	DPS heroes should prioritize skills that increase burst damage, skill damage, crit potential, or damage uptime.	Main active damage skill Passive damage boost Crit / attack-related skill Utility or survival skill
Support Heroes	Support heroes should only receive heavy investment after your tank and main DPS are stable.	Healing / buff / debuff skills Energy or cooldown-related effects Survival skills

 

What is the Gear Upgrade Strategy?

Gear is another major part of hero growth. Heroes have four gear slots: weapon, gloves, armor, and boots. Weapon and gloves mainly improve offensive stats, while armor and boots improve defensive stats and survivability.

Tank Gear	Armor → Boots → Weapon → Gloves	Tanks such as Arthur, Bella, and Grifith need survivability first.
DPS Gear	Weapon → Gloves → Boots → Armor	DPS heroes such as Marlena and Grenwald need attack and damage first.
Legendary Gear	Prioritize main tank and main DPS first	Do not waste too many materials on low-rarity gear.
Gear Workshop	Upgrade to Level 10 early	Level 10 unlocks Legendary gear crafting,
Upgrade Materials	Save for long-term core heroes	Focus materials on Arthur, Marlena, Bella, or Grenwald instead of spreading them evenly.

 

What Team should players Choose?

Team First, Gear Second

Gear upgrades should always serve the team structure. A single well-equipped hero cannot carry the whole game if the team lacks a stable tank, main DPS, and support. Before upgrading gear, players should first decide their core lineup, then distribute equipment based on each hero’s role.

For example, Arthur or Bella should receive defensive gear first because they protect the whole team. Marlena or Grenwald should receive offensive gear because they are responsible for damage output. In other words, gear is not upgraded randomly — it should strengthen the team’s overall balance.

If you want to know how to build Team, Here is the Details.

 

Conclusion

For most players, the best hero upgrade strategy in Last Asylum: Plague is not to chase every new hero, but to build a stable core team. Arthur and Marlena are the safest long-term investments if you have them. If not, Bella and Grenwald are excellent alternatives for early and mid-game progression. Once your main tank and main DPS are stable, you can start investing in support heroes, secondary tanks, and specialized teams for Rat Swarm or boss content. Keep following LDshop to get more information and better top-up service！