Honkai: Star Rail battle mechanics

In both the battlefields, the battlefield where the Boss Enemy is located is called the prime-field, while the other battlefield is called the sub-field.

All ally targets are split between two battlefields. Ally and enemy targets cannot attack targets on a different battlefield.

When an ally character enters the "Phantom Illusion" state, they will be "Departed". Units summoned during the "Phantom Illusion" state will fight in their place and inherit some of that character's stats.

Units in the "Overloadable" state will convert any damage exceeding their current HP into "HP Overload" and won't be knocked down as a result.

"Back Row Target" is located in the back of the formation on the field and cannot be selected by "Single Target ATK" and "Blast"-type abilities. "AoE ATK," "Bounce," and "Follow-Up ATK" abilities can hit enemy Back Row Targets.

Units with "HP Count" will not lose HP when attacked, but their "HP Count" will decrease instead. When the "HP Count" reaches zero, the unit will be knocked down. Healing and Shield effects cannot prevent "HP Count" reduction.

The "Antinomy" state will activate Ultimates. However, using an Ultimate during this effect will cost massive HP.

Due to the presence of Eye of Twilight, all targets on the field will be affected by the weather effects. While in Sunny Day, the battlefield has the "Temperature" effect. At the start of any target's turn, "Temperature" increases. Allies will take continuous Burn DMG based on "Temperature." DMG dealt by ally targets increases based on "Temperature."

Certain enemies will inflict ally units with the "Corrosion" state. Attacking enemies will restore Corroded HP. The more targets hit, the more is restored.

Reducing the HP of "Conquer or Be Conquered" restores the corresponding character's Maximum Restorable HP, and the character can deal increased DMG when attacking their corresponding "Conquer or Be Conquered."

Characters with "Glory" can obtain buffs via using Skill or Ultimate to increase "Glory" stacks, as well as dispel a number of "Titanic Corpus" stacks equal to the current "Glory" stacks when attacking.

Enemy barrage-type abilities will always initiate from a fixed side of the team, sequentially attacking all units without being influenced by any effects that alter target selection. If all units have been attacked and there are remaining attack counts, the ability will then target random units.

Enemy sweep-type abilities will always initiate from a fixed side of the team, sequentially attacking a set number of targets without being influenced by any effects that alter target selection.

Enemy distribution-type abilities will attack multiple targets within the team, and the attacked targets will evenly distribute either the DMG coefficient of the ability or any additional effect coefficient attached to that ability.

When normal enemies with this mark are defeated, deals DMG to the Boss enemy.

Enemies with multiple layers of Toughness will suffer an instance of Break DMG each time a layer of Toughness is reduced. When the last layer is reduced to 0, the Weakness Break effect will trigger.

Collective Shield can take DMG on behalf of all ally characters, and the Shield Effect represents the amount of DMG the Shield can currently endure.

Enemies tagged with this mark will share HP.

{LAYOUT_CONTROLLER_PS#Use the controller to switch between or to use abilities.}

{LAYOUT_CONTROLLER_PS#Use the controller to switch the currently selected target.}

Skill Points are shared among the team. Using a Skill will consume Skill Points, while using Basic ATK can recover Skill Points. To emerge victorious, you need to allocate your resources wisely!

Click the target in the Action Order to review their details.

SPD will affect the interval between a target's actions. The faster their speed, the shorter the interval. At the same time, SPD also affects the Action Order when entering battle.

Ultimates can be used when a character's Energy is fully charged. Ultimates can be unleashed at any time. Use it at the right moment to give you more actions.

Energy is regenerated in battle when using abilities, defeating enemies, or receiving attacks. Energy Regeneration Rate can boost the amount of energy a character gains.

Enemy targets have Toughness. Depending on the strength of the enemy, their Toughness will also be different.

Enemies with Exo-Toughness will trigger Weakness Break when their initial Toughness is reduced to 0. Then, their temporary Toughness can continue to be reduced. When temporary Toughness is reduced to 0, the enemy will receive Weakness Break DMG again. The effect will be removed after this occurs.

The Base Value of how much enemy Toughness is reduced by this attack.

When you attack an enemy using the same attack Type as their Weakness and deplete their Toughness to zero, it will trigger the corresponding attack Type's Weakness Break effect and delay their action. Simultaneously, this will also cause them to enter a state of Weakness Break.

When Breaking enemies' Weakness, immediately deals Break DMG once. Break DMG increases with Break Effect and cannot CRIT.

Super Break DMG increases with higher Break Effect, higher Toughness Reduction of the attack, and higher character levels. Super Break DMG cannot CRIT Hit and is not affected by DMG Boost effects. Super Break DMG is also considered Break DMG.

Using Physical attacks to trigger Weakness Break will immediately deal Physical Break DMG and apply the Bleed effect. Bleed will cause enemies to take Physical DoT at the start of the target's turn based on a proportion of the target's Max HP.

Using Fire attacks to trigger Weakness Break will immediately deal Fire Break DMG and apply the Burn effect. Burn will cause enemies to take Fire DoT at the start of their turn.

Using Ice attacks to trigger Weakness Break will immediately deal Ice Break DMG and apply the Freeze effect. Freeze will cause enemies to be unable to take action and take Ice Additional DMG at the start of their turn. After Freeze is dispelled, Weakness Break will continue until the start of their next action.

Using Lightning attacks to trigger Weakness Break will immediately deal Lightning Break DMG and apply the Shock effect. Shock will cause enemies to take Lightning DoT at the start of their turn.

Using Wind attacks to trigger Weakness Break will immediately deal Wind Break DMG and apply the Wind Shear effect. Wind Shear can stack and will cause enemies to take Wind DoT at the start of their turn.

Using Quantum attacks to trigger Weakness Break will immediately deal Quantum Break DMG and apply the Entanglement effect. Entanglement will cause enemies to have their action delayed and take Additional Quantum DMG at the start of their turn. If enemies are attacked while Entangled, the Additional DMG will be increased.

Using Imaginary attacks to trigger Weakness Break will immediately deal Imaginary Break DMG and apply the Imprisonment effect. Imprisonment will cause enemies to have SPD Reduction and have their action delayed.

When an enemy target's Toughness is depleted to zero, they will enter a Weakness Break State, during which the DMG they receive is increased. At the beginning of the enemy target's turn, their Toughness will be restored, and the Weakness Break State will be removed.

During your adventures, you will encounter enemies with multiple Weaknesses. Entering combat using attacks that match these Weaknesses can reduce the Toughness of enemies who have these Weaknesses.

Use auto-battle to cast abilities and fight automatically. However, auto-battle cannot be used in some special combat situations.

Use 2× speed to experience quicker battles. However, 2× speed will be temporarily turned off in some special combat situations.

During combat, some characters will automatically trigger an additional attack, known as Follow-Up ATK, when certain conditions are met. Counters are also considered a type of Follow-Up ATK.

During combat, some characters will receive an extra turn when certain conditions are met. This extra turn does not consume any turn counts, and Ultimates cannot be used during this extra turn.

During combat, certain ability effects are subject to chance when activated. There are two types of chances: base chance and fixed chance. Base chance can be affected by Effect Hit Rate and Effect RES, while fixed chance is not affected by any factors.

DMG dealt by Bleed, Burn, Shock, and Wind Shear is considered DoT. This DMG cannot deal CRIT Hit.