Level Up Heroes Efficiently in Last Asylum: Plague

Jessica Turner

Jun 24, 2026

Leveling up heroes in Last Asylum: Plague may be quite confusing for you at the beginning of the game. In the first place, there are so many different characters available and at the same time you only have a certain amount of resources to distribute so going for the wrong heroes in the beginning might cause you to lose several weeks. But, once you get to grips with the main ideas of hero progression in this game, your path will instantly become much simpler. In fact, this guide shows you in detail the method that yields results and which heroes are really worth your attention first. Also, if you want to quickly boost your development with diamonds, LootBar is the excellent option where you can get your Last Asylum top up with better prices.

Hero Roles and Your Core Four

Before jumping into specific leveling strategies, you need to understand what each hero does. Here is a quick breakdown of Marlena, Arthur, Harper, and Celia:

Hero	Rarity	Role	Best For
Arthur	UR	Tank	Primary frontline, team protection, Rat Swarm, PvP
Marlena	UR	DPS/Carry	Burst damage, boss kills, priority target elimination
Harper	UR	Carry/Secondary Tank	Secondary squad leader, boss-focused content, durability
Celia	SSR	Support	Resource drops, utility, team synergy, early game

The Golden Rule: One Strong Hero Beats Three Weak Ones

Before focusing on particular heroes, you should grasp the main principle in Last Asylum a fully upgraded hero with A-tier will defeat three half-upgraded heroes with S-tier, no doubt. This is the trap new players fall into time and again. They spot various heroes, get thrilled, and try to level all of them equally. Don't do that. Hero power is determined by the combination of level, star rank, skills, and gear. If you distribute your resources among five different heroes, then you will end up with five weak heroes. Though, if you concentrate all your efforts on your main team of three to five heroes, then these heroes will be strong enough to lead you through the game.

Priority 1: Arthur - The Essential Tank

There is simply no argument for Really your first hero investment should be always be Arthur. In fact, not only is Arthur a tank, but he also is the mainstay of every winning team in Last Asylum. ) . His passive ability lowers the amount of damage that other tanks receive while his active skill enables him to cast a shield based on his current max HP. His ultimate skill Earthshattering not only deals a lot of AoE damage to all enemies in range but also grants the allies a damage reduction buff for a few seconds. The reason Arthur is the only tank who can keep your whole team alive during Rat Swarm fights and lengthy battles is because of his healing abilities. Investing in Arthur initially results in better performance of other heroes as your team is able to survive longer behind him. So, your very first hero to be a major investment must be Arthur - all other heroes do better when he is defending them.

Why Arthur is great:

Team-wide damage reduction that scales with investment
Works in every game mode (PvE, PvP, Rat Swarm)
Enables squishy DPS to survive higher difficulty content
Shield generation based on HP means more tankiness equals more shields
No other tank provides this level of utility

Priority 2: Marlena - Your Main Damage Dealer

After stabilizing Arthur, your next step should be to spend resources on Marlena as the main damage dealer. Marlena is the ultimate rarity hero capable of delivering the highest burst damage to a single target among all heroes in the game. Her energy-damage sword attacks are extremely aggressive and her multi-target ultimate is capable of taking down even the strongest priority targets. Her passive skill increases all energy damage dealt by her and her cooldown reduction enables her to continuously use abilities. It is In fact a joy to see her completely destroy entire waves and priority targets when you secure her safely behind a maxed Arthur. The synergy of a powerful Arthur defending the frontline and a capable Marlena dealing damage forms the basis of every competitive team in Last Asylum.

Why Marlena is great:

Highest single-target burst damage in the game
Scales absurdly well with gear and skill upgrades
4.5 second cooldown on main ability means constant pressure
Works in every game mode and content
Affordable as a $1 first top-up bundle

Priority 3: Harper - Your Secondary Carry

Harper is a UR character who can round up Marlena team as the second damage source or be a main DPS in the second squad. She has a very reliable front line and also deals good damage which makes her a good choice for boss fights. Even though she doesn't have the burst potential of Marlena, Harper makes up for it with perks for the whole team that Marlena doesn't have. If you get Harper at the start, think about pairing her with Arthur and Marlena for a hard-hitting team.

Why Harper is great:

Works as primary or secondary carry
Offers durability without sacrificing damage
Excellent for secondary squad leadership
Flexible enough for different team compositions
Good alternative if Marlena takes time to obtain

Priority 4: Celia - Your Starting Support

Celia is an SSR support hero who can be obtained right from the start of the game. She is fast to upgrade and has a kit that does decent damage but more importantly gives a resource bonus from Resource and Elite enemies. She offers team utility that keeps the game's wheels moving in the background. Her small damage numbers are nothing to write home about, but her resource bonus speed that process up for you.

Why Celia is great:

Easy to upgrade with accessible shards
Increases resource drops from PvE fights
Provides solid damage for an SSR
Works well in early and mid-game
Frees up resources for your main carries

Leveling Order: Tank First, DPS Second, Support Third

The correct priority order for building your team is clear. Build your main tank (Arthur) first until they are genuinely strong. Then build your main DPS (Marlena) to carry your damage output. Only after that move to support and flex heroes like Celia. This order makes sense because if your frontline collapses early no amount of damage output will save you. A strong tank lets your DPS do their job which is why Arthur comes before Marlena on the investment priority list.

How Star Rank and Gear Impact Hero Leveling

Your hero leveling is only one aspect of the equation. Upgrading star ranks and the investment in gear drastically enhances the actual hero performance. Heroes are equipped with four gear slots - weapon gloves armor, and boots. Weapon and gloves mainly raise offensive stats while armor and boots First and foremost boost defensive stats and survivability. When your main heroes are leveled well, gear upgrades should be your priority. Weapon and gloves are for your main DPS while armor and boots are for your tank. Following this strategy your tank will be able to live longer which is allowing your DPS to inflict more damage.

Daily Routine That Builds Strong Heroes

The players who progress fastest in Last Asylum are not always the ones who spend the most they are the ones who spend smart and keep a consistent daily routine. Log in every day. Clear your daily tasks. Complete Rat Swarm challenges. Keep troop training active. Upgrade one meaningful building. Feed all your best resources into the same core hero squad. That routine is not flashy but it works. Fast progression comes from boring consistency, not chasing random upgrades that look exciting in the moment.

Conclusion

Leveling heroes in Last Asylum: Plague the fastest way is a matter of prioritizing and being consistent. Choose Arthur as your main tank and concentrate on building him first. Put Marlena as your main DPS and give them both all the resources you have at one time. Introduce Harper if you manage to get her early or alternatively, use Celia as your support to fill your team. Skill up and equip them in a well-planned manner. Maintain a daily schedule. Avoid distributing your resources thinly among five different heroes. Keep your diamonds for the right banners. Adhere to this strategy and you will get a strong team that supports you in Rat Swarm, boss fights, and other late-game content. Whenever you decide to get a boost in your game with diamonds and hero shards, LootBar is a quick and less expensive Last Asylum top-up option so you will never experience your progress being stuck.