Last War Survival has introduced Season 4 recently, which is called Evernight Isle. In this season, the profession system has been highly updated. The basic structure is familiar to that of previous seasons, but there are some significant changes in how profession levels, skill progression, and seasonal events work together. It is important that you understand the whole system so that you know which profession and skill you should choose and prioritize.
In this guide, we will talk about the roles of different professions, how to level them effectively, which skills to focus on, and how to adapt your strategy to maximize your efficiency. Before diving in, it is recommended that you go for a Last War Survival top up from LootBar so that you can stay ahead of your opponents and have enough resources available when needed.
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Profession System Overview
Just like Seasons 1, 2, and 3, Season 4 also has two main professions - Engineer and War Leader. Although these professions are different, their seasonal skill trees are exactly the same. This means your options of unlocking seasonal skills increases, no matter which profession you choose. In both professions, you can go up to skill level 100. After that if you earn any experience, it is stored and converted into core tactic upgrades at the end of the season.
The main difference between Engineer and War Leader is in their core stat bonuses. Engineers tend to benefit more from development-related boosts, while War Leaders support military strength. However, since both professions now have the same skill tree, you don’t need to choose one over the other based on skill progression.
How to Gain Profession EXP in Season 4?
Profession experience (EXP) is earned through various gameplay actions during the Evernight Isle season. The main sources include:
- Killing monsters on the world map
- Upgrading or activating seasonal buildings
- Participating in the island’s unique light/electricity system
Staying in the light zone, or helping power it for yourself or allies, ties directly into profession progression. The more time you spend in light, the more seasonal rewards you unlock - including skill reset books, profession change certificates, and additional skill points.
Seasonal Skills
Here are all the skills that you can unlock – Double Exchange, Contaminated Land Teleport, Professional Insights, Trade Discount, Top Up EXP, Fragile Spell, Shrinking Spell, Blood Night Hunter, Blood Night Hunter Teleport, Hunting Inspiration, Electrician Rally Call, Flare, Lightfall, Disruption Mine, Summon Mummies and Oni Summon. Let us talk about when you should go for which skill.
- Early Season
At the beginning of the season, your goal should be to increase profession EXP as quickly as possible. Two early-unlock skills are critical for this:
- Combat Experience: Increases EXP gained from killing world map monsters. This should be your first priority and maxed out early.
- Building Inspiration I: Boosts EXP from upgrading seasonal buildings. Since construction plays a big part in early progress, this synergizes well with your base development.
By focusing on these two, you set yourself up for faster overall progression and can unlock higher-level skills sooner.
- Mid Season
As you advance, the light system becomes central to your gameplay. A skill called Top Up EXP enables you to gain profession EXP even by sending your electrician (the unit that powers the light zones) to aid allies. This makes the electrician not just a utility unit, but a profession-growth tool as well.
Around the middle of the season, the Blood Night Hunter event unlocks. To fully participate in this system, you’ll need to unlock the Blood Night Hunter skill, which acts as a prerequisite.
Once active, you can then invest in Hunting Inspiration, which gives you large EXP bonuses every time you defeat a Blood Night Hunter. It caps at five kills per event round, offering a strategic burst of progression if you time it right.
- Late Season
Once you hit Level 100, a special skill named Oni Summon becomes available. It is the ultimate seasonal skill and allows you to summon a powerful unit - the Blood Night Oni Legion - that follows your army and attacks enemy bases for a limited time. This legion exists for five minutes and can only be summoned once every 47.5 hours.
Oni Summon is ideal for late-season warfare, especially when engaging in base-to-base combat or high-stakes events. However, due to its cooldown and requirement of max level, it should be viewed as a final goal, not a skill to rush toward too early. You can visit the Last War Store anytime to look for items that might complement your needs.
Skill Prioritization Strategy
Because you only earn a limited number of skill points, choosing which skills to unlock (and when) becomes a game-changing decision. A good skill unlock path might look like this:
Start with Combat Experience and Building Inspiration I to boost early growth. Then, progress into Top Up EXP for electrician-based synergy and unlock Blood Night Hunter around Level 70. Once that’s active, spend a point in Hunting Inspiration and maximize your Blood Night kills for bonus EXP.
Only after these priorities are covered should you start saving points toward Oni Summon. You’ll want to ensure you’re already hitting the level cap before unlocking it, so you don’t waste skill points early.
Skill resets are available, but they’re limited to your light time rewards. Plan your path carefully so you don’t depend too heavily on a reset later.
Choosing the Right Profession
Since both professions have identical skill trees, your choice depends mostly on your intended role:
- If you prefer base building, development, and support, Engineer may be more beneficial due to its passive buffs.
- If you're focused on warfare and offense, War Leader will offer stronger military bonuses.
The fact that you can switch professions using a Profession Change Certificate gives you flexibility. You can start as Engineer for early growth, then switch to War Leader later when PvP becomes more important.
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Conclusion
Season 4’s profession system in Last War Survival offers deep strategy with flexible skills and rewarding progression. Whether you choose Engineer or War Leader, focusing on the right skills at the right time is key. Plan smartly, prioritize EXP growth, and adapt as the season evolves for long-term success.
