Difference between revisions of "Defense"

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Your '''defense''' is the amount by which you reduce incoming [[damage]].
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Every knight and monster carries some amount of '''defense''' against each [[damage]] type. Defense reduces the amount of damage received in an attack. For large attacks, the net damage incurred by the target is simply the gross damage inflicted by the attacker, minus the defense of the target. For smaller attacks, the relationship between net and gross damage is more complicated and not yet completely understood by the players of ''Spiral Knights''.
  
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== Defense from Armor sets ==
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== Knight Defense ==
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[[Armor]] provides 5 distinct levels of defense. This page will refer to these as 'base', 'class', 'special', 'plate' and 'heavy plate'.
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A knight's defenses are primarily determined by his (or her) [[armor]]. Based on measurements of 5-star armors, in [[Lockdown]] at depth 25, it seems that armor can provide five distinct levels of defense:
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*"Base'" defense is the lowest amount. A full set (both pieces) of base defense armor has been measured at 125 defense points.
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*"Class" defense is the second most common amount of defense. A full set of class armor has been measured at 142.
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*"Special" defense is seen on defensive armor sets. A full set has been measured at 150.
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*"Plate" defense is seen for the normal defense on the plate sets of armor. It has been measured at 201 for a full set.
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*"Heavy plate" defense can be found only on the [[Ancient Plate Mail]]/[[Ancient Plate Helm|Helm]]. It has been measured at 301 for a full set.
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The numbers are different for other depths and other star rankings, but the ratios remain representative. In addition to armor, there are several other sources of defense for knights:
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*5-star defense [[trinket]]s have been measured at 32 for a pair of trinkets at depth 25.
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*Defense from [[unique variant]]s have been measured at 52 for a double max at depth 25.
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*[[Battle Sprite|Battle sprite]] perks are equal to UVs.
  
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All numbers are measured at depth 25, within Lockdown, for 5* armors. The numbers are different for other depths and other star rankings, but the ratios remain representative.
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== Monster Defense ==
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*'Base' defense is the lowest amount. A full set of base defense, (two pieces), have been measured at 125.
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*'Class' defense is the second most common amount of defense. A full set of class armor have been measured at 142.
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*'Special' defense is seen on defensive armor sets. A full set has been measured at 150.
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*'Plate' defense is seen for the normal defense on the plate sets of armor. It has been measured at 201 for a full set.
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*'Heavy plate' can only be found on the [[Ancient Plate Helm]] and [[Ancient Plate Helm]]. It's been measured at 301 for a full set.
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== Defense from other sources. ==
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Monsters have a fixed amount of defense depending on depth. Neutral defense will always be double of weak defense, but it can vary on a depth depending on buffs and debuffs from [[poison]], [[Yesman|yesmen]], [[danger room]]s, and similar buffs. It is not yet known how much strong defense monsters have, nor is it certain if strong defense utilizes the same formula as weak and neutral.
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*5* defense trinkets have been measured at 32 for a pair of trinkets at depth 25.
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*Defense from UVs have been measured at 52 for a double max at depth 25.
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*The Battle Sprite perks are equal to UVs.
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== Monster defense ==
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Monsters have a fixed amount of defense depending on depth. Neutral defense will always be double of weak defense, but it can vary on a depth depending on buffs and debuffs from [[poison]], [[yesman]]s, [[danger room]]s and similar buffs. It is not yet known how much strong defense monsters have, nor is it certain if strong defense utilizes the same formula as weak and neutral.
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Here are some measured defense numbers. They are not exact, as the actual amounts are not integers. Instead, they are displayed as minimum for the first depth and a maximum for the last depth of a stratum.
 
Here are some measured defense numbers. They are not exact, as the actual amounts are not integers. Instead, they are displayed as minimum for the first depth and a maximum for the last depth of a stratum.
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{{SKDamageTable|state=collapsed|
 
{{SKDamageTable|state=collapsed|
 
{{SKNewRow}}
 
{{SKNewRow}}
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Some monsters are exceptions to this. [[Oiler]]s that are lit on fire get their elemental defense increased to strong defense. [[Lord Vanaduke]] has his own amount of defenses, not being tied to any family. These values are 150 piercing, 180 normal, 200 elemental and 200 shadow. His mask has 150 normal, 180 normal, 200 elemental, shadow and piercing defense.
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Some monsters are exceptional. [[Oiler]]s that are lit on fire get their elemental defense increased to strong defense. [[Lord Vanaduke]] has his own amount of defenses, not being tied to any family. These values are 150 piercing, 180 normal, 200 elemental and 200 shadow. His mask has 150 normal, 180 normal, 200 elemental, shadow and piercing defense.
  
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== The Formula ==
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== Calculating Damage ==
  
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When ''raw damage > 2x defense'', final damage is simply calculated as
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When the gross damage inflicted in an attack is greater than twice the defense of the target, the net damage incurred by the target is simply their difference:
  
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'''Final damage = raw damage - defense'''
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:net damage = gross damage - defense
  
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It gets more complicated when ''raw damage'' is less than ''2x defense''. We can be certain that the final damage will be less than ''(raw damage / 2)'', but beyond that, we can't be certain. Defense starts off being more effective when ''raw damage'' is close to ''2x defense'', but it diminishes as the ''defense' grows larger compared to ''raw damage''.
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The relationship is more complicated when gross damage is less than twice the defense. We can be certain that
  
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== A practical example ==
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:net damage < gross damage / 2,
  
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The raw damage of ''Normal Blade'' and ''Stabby Sword' are both 400. You attack a [[beast]] with both. The beast has 75 piercing defense and 150 normal defense. It takes ''400 - 75 = 325'' damage from the piercing sword and ''400 - 150 = 250'' damage from the normal sword.
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but we do not understand much more than that. The practical effect of defense diminishes as the defense approaches gross damage.
  
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We also attack the beast with ''Evil Sword'', which is split shadow/normal damage. It has a total raw damage of 550. For its attacks, we deduct both the 150 shadow defense as well as the 150 normal defense for a total of 250 damage.
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For example, suppose that a [[beast]] has 150 normal defense, 75 piercing defense, and 150 shadow defense. You have three swords: normal, piecing, and normal+shadow.
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* Your normal sword does 400 gross damage, for a net damage of 400 - 150 = 250 against the beast.
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* Your piercing sword does 400 gross damage, for a net damage of 400 - 75 = 325.
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* Your normal+shadow sword does 275 damage of each type, for a net damage of (275 - 150) + (275 - 150) = 125 + 125 = 250.

Revision as of 16:02, 30 November 2013

Every knight and monster carries some amount of defense against each damage type. Defense reduces the amount of damage received in an attack. For large attacks, the net damage incurred by the target is simply the gross damage inflicted by the attacker, minus the defense of the target. For smaller attacks, the relationship between net and gross damage is more complicated and not yet completely understood by the players of Spiral Knights.

Knight Defense

A knight's defenses are primarily determined by his (or her) armor. Based on measurements of 5-star armors, in Lockdown at depth 25, it seems that armor can provide five distinct levels of defense:

  • "Base'" defense is the lowest amount. A full set (both pieces) of base defense armor has been measured at 125 defense points.
  • "Class" defense is the second most common amount of defense. A full set of class armor has been measured at 142.
  • "Special" defense is seen on defensive armor sets. A full set has been measured at 150.
  • "Plate" defense is seen for the normal defense on the plate sets of armor. It has been measured at 201 for a full set.
  • "Heavy plate" defense can be found only on the Ancient Plate Mail/Helm. It has been measured at 301 for a full set.

The numbers are different for other depths and other star rankings, but the ratios remain representative. In addition to armor, there are several other sources of defense for knights:

  • 5-star defense trinkets have been measured at 32 for a pair of trinkets at depth 25.
  • Defense from unique variants have been measured at 52 for a double max at depth 25.
  • Battle sprite perks are equal to UVs.

Monster Defense

Monsters have a fixed amount of defense depending on depth. Neutral defense will always be double of weak defense, but it can vary on a depth depending on buffs and debuffs from poison, yesmen, danger rooms, and similar buffs. It is not yet known how much strong defense monsters have, nor is it certain if strong defense utilizes the same formula as weak and neutral.

Here are some measured defense numbers. They are not exact, as the actual amounts are not integers. Instead, they are displayed as minimum for the first depth and a maximum for the last depth of a stratum.

Defense's Damage Table (Click to Show!)
Stratum 1 Stratum 2 Stratum 3 Stratum 4 Stratum 5 Stratum 6
Weak defense
Defense 5-9 11-15 19-27 30-38 44-57 65-82
Neutral defense
Defense 10-17 23-30 39-53 61-75 89-114 130-164
Strong defense
Defense  ?  ?  ?  ?  ?  ?

Some monsters are exceptional. Oilers that are lit on fire get their elemental defense increased to strong defense. Lord Vanaduke has his own amount of defenses, not being tied to any family. These values are 150 piercing, 180 normal, 200 elemental and 200 shadow. His mask has 150 normal, 180 normal, 200 elemental, shadow and piercing defense.

Calculating Damage

When the gross damage inflicted in an attack is greater than twice the defense of the target, the net damage incurred by the target is simply their difference:

net damage = gross damage - defense

The relationship is more complicated when gross damage is less than twice the defense. We can be certain that

net damage < gross damage / 2,

but we do not understand much more than that. The practical effect of defense diminishes as the defense approaches gross damage.

For example, suppose that a beast has 150 normal defense, 75 piercing defense, and 150 shadow defense. You have three swords: normal, piecing, and normal+shadow.

  • Your normal sword does 400 gross damage, for a net damage of 400 - 150 = 250 against the beast.
  • Your piercing sword does 400 gross damage, for a net damage of 400 - 75 = 325.
  • Your normal+shadow sword does 275 damage of each type, for a net damage of (275 - 150) + (275 - 150) = 125 + 125 = 250.
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