Status effects

Buffs

Buffs are all status effects that positively affect their target. They generally don't stack.

• Fortify
• Empower

You can remove any buff on yourself by right clicking on its timer.

Button to remove a buff

Debuffs

Debuffs are all status effects that negatively affect their target. They generally don't stack.

• Vulnerability
• Weaken

Damage over time

There are multiple damage over time effects and their additional effects are active as long as there's at least 1 stack of this debuff active on the enemy. Unlike direct damage spells (e.g. Fireball), these effects always do the exact same damage. They're not affected by critical chance and any damage increasing effects work on them only at the time of applying - their damage doesn't change for their entire duration.

Fun fact: This system is built so efficient that the game can handle millions stacks of Dots at once, all with distinct damages and durations :D

Each damage over time deals damage once per tick but each type also has certain additional effects

Damage over time effects:

• Burn
• Poison
• Bleed
• Mana burn
• Plague
• File:Corruption icon.png Corruption

Crowd control

Crowd control is a special type of debuff because it affects the creature's behavior in some way (except elites and bosses which are imunne to them). Unlike with other debuffs, crowd control effects use orange as the color of its timer. There are a few types of crowd control:

• Slow
• Freeze
• Stun

Stacking debuffs

If a debuff deals damage, their damage can stack but any other debuff (or if this debuff deals no damage), these don't stack. When a new stack is applied, it deals its damage in full, regardless of how many stacks are currently applied (with the exception of Plague). However, the player can have only up to 20 stacks per each damage over time type of debuff active. Non-stacking debuffs overwrite the old debuff only if the new one is stronger.

Burn icon with 4 stacks

For debuff with a length and strength (e.g. Slow):

Overwriting the old debuff is based on this formula:

$Debuff\;strength*Debuff\;duration$

Debuff strength represents how powerful the debuff is (e.g. 30% slow is used here as "30"), while debuff duration indicates either the new effect's length or the time left on the current effect. If the result of this formula for a new debuff is at least 10% higher than for the old one, the new debuff overwrites it, otherwise the old debuff stays and the new one is ignored.

Debuff overwriting example

Old effect			New effect			Result
Debuff strength	Debuff duration	Formula result	Debuff strength	Debuff duration	Formula result	Active debuff after
50% (50)	5 seconds	250	30% (30)	10 seconds	300	New
60% (60)	10 seconds	600	65% (65)	10 seconds	650	Old
25% (25)	20 seconds	500	90% (90)	6 seconds	540	Old
25% (25)	20 seconds	500	95% (95)	6 seconds	570	New

                       

For effects where strength is always the same but length varies (e.g. Stun):

Overwriting these debuffs is purely based on how much time is left until this debuff expires. If the new debuff lasts longer than is the remaining duration of the currently applied debuff, it overwrites it. Otherwise the old debuff stays active and the old one is ignored.

Debuff overwriting example

Old duration	New duration	Active debuff after
20 seconds	25 seconds	New
20 seconds	15 seconds	Old
20 seconds	21 seconds	New
20 seconds	22 seconds	New