Reference!
The healing mechanic is one of the most complex systems in the game: formulas, hidden multipliers, magic crits, target bonuses, healer bonuses, restrictions, and abuse protection. We've broken down this chaos line by line—nicely, clearly, and with great depth.
Healing Mechanics in Lineage 2: A Complete Analysis
Today I want to explore one of the most underrated and misunderstood systems—the healing mechanics in Lineage 2. It's a complex mathematical construct of multipliers, constraints, and hidden engine logic.
In this article you will learn:
- Why doesn't healing depend on M.A. as much as everyone thinks?
- Where does that crit heal x3 come from and why isn't it connected to the level 78 passive?
- How do shots affect healing (and why without BSS you heal almost twice as badly)
- Why do some characters heal like sponges, while others are almost impossible to heal?
- What are Heal Power and Heal Effectiveness, and who owes what to whom?
- Why does the game have an HP_LIMIT limitation—and what hellish bugs does it prevent?
Healing mechanics in Lineage 2: bbasic principle of treatment in L2
When I press the heal skill, the server runs the method:
useSkill(Creature activeChar, List<Creature> targets)
Inside there is a whole chain of calculations:
- The skill's Power is taken from XML
- a bonus from magical attack is added
- Enhanced by Spiritshot / Blessed Spiritshot
- possible ×3 critical heal
- the Heal Effectiveness of the target is taken into account
- the healer's Heal Power is taken into account
- HP_LIMIT is used to avoid overfilling
- effects are applied, a system message is sent
That is, as you already understood, heal is a multi-stage formula, and not a single number.
Basic Healing Formula
hp = Power + 0.1 * Power * sqrt(M.Atk / 333)
Moreover, if the skill is NOT static (_staticPower = false), it scales with magical attack. Why the square root? So that magical attack has diminishing returns—as M.Atk increases, healing increases, but doesn't skyrocket.
Shots: Mandatory Multiplier
if (BSS) hp *= 1.5;else if (SS) hp *= 1.3;
And this is a multiplier on the already calculated value. The final logic at this stage is:
Heal = (Power + M.Atk bonus) × 1.3/1.5
Critical Heal = Skill Mastery (internal flag)
Here is an important point that 95% of players interpret incorrectly.
There are two concepts with the same name in the game:
- Passive “Skill Mastery” (appears at level 78)
- True crit heal is another “Skill Mastery = 3” inside the engine
if (activeChar.getSkillMastery(getId()) == 3)hp *= 3;
That is: Critical Heal = Magic Crit applied to the HEAL effect.
This isn't a passive. It's part of the magic crit mechanic and works regardless of level or skills. It's calculated using the same formula as magic crit chance.
Heal Effectiveness and Heal Power
After all the previous multipliers, the server starts counting individually for the target:
- Heal Effectiveness (for targets: passives, buffs, sets, tattoos, etc.)
- Heal Power (healer: passives, buffs, set, tattoos)
The final logic of treatment:
Heal = Base → M.Atk → Shots → × Heal Effectiveness → × Heal Power
And of course there is protection from overhealing, I don’t know how important it is for you to know this information, but still.
maxHealLimit = (HP_LIMIT% × MaxHP) – CurrentHPhp = min(hp, maxHealLimit)
On the one hand, the mechanics are strange, but as I understand it, if the target can have, for example, a maximum of 120% HP (buffs/passives), then the heal only fills up to this limit.
Why do you need this? It protects against abuse, bugs, and endless overhealing on poorly designed builds. We hope we've managed to explain in detail how healing mechanics work in Lineage 2.
You can find more interesting articles in our blog dedicated to Lineage 2.
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