How base stats work: Specifically Attack Rating

Comments

• DNA3000 Posts: 18,660 Guardian

  September 2019

  The basic idea is that most attacks do some multiple of attack rating in base damage. For example, all light attacks do 25% of the champion's attack rating in base damage. My recollection is that medium attacks do 40%, and heavies do 85%. Special attacks don't follow a rule like this.
  
  Anything that buffs attack rating automatically increases the base damage of any attack that scales with attack rating. Base damage is then increased or decreased by damage buffs and debuffs. Starting from 100% (base damage) your outgoing damage is increased by or decreased by damage buffs linearly: add them all up, and that's your final outgoing damage.
  
  When the damage "lands" there's a separate set of complex calculations that happens. Armor and resistances are calculated and your damage is reduced by that. If the attack is physical damage then physical resistance is used, if the attack is energy then energy resistance is used. Both are flat stats so you have to calculate the actual net armor rating from the flat stats which turns into a percentage: damage is reduced by that percentage. Armor breaks count as "negative armor." As of the last time I checked, armor break and armor are calculated separately and then combined. In other words, you DR your armor and you separately DR you "negative" armor breaks, and you then subtract the armor break percentage from your armor percentage. Oh, there's also armor penetration which allows an attacker to essentially reduce the amount of armor the target has. It also works independently of armor last I recall.
  
  Crits are more complicated.

  2
• xdethsquadx Posts: 50 ★

  September 2019

  All % increases are based on the base attack. So if WS with KM increases 5% per hit, boosts and synergies dont matter. Masteries either. Even boosts. Not suicides +10% of suicide damage. You get suicide damage plus 10% of base attack.

  0
• xdethsquadx Posts: 50 ★

  September 2019

  There is a critical rate and damage rating for every champ. That greatly chamges the amount of damage done. Everyone has a flat% based on their base attack for crits and such. Opponent block proficiency and armor change it. RNG and diminishing returns effect it too.

  0
• Cendar333 Posts: 303 ★

  September 2019

  DNA3000 said:

  The basic idea is that most attacks do some multiple of attack rating in base damage. For example, all light attacks do 25% of the champion's attack rating in base damage. My recollection is that medium attacks do 40%, and heavies do 85%. Special attacks don't follow a rule like this.
  
  Anything that buffs attack rating automatically increases the base damage of any attack that scales with attack rating. Base damage is then increased or decreased by damage buffs and debuffs. Starting from 100% (base damage) your outgoing damage is increased by or decreased by damage buffs linearly: add them all up, and that's your final outgoing damage.
  
  When the damage "lands" there's a separate set of complex calculations that happens. Armor and resistances are calculated and your damage is reduced by that. If the attack is physical damage then physical resistance is used, if the attack is energy then energy resistance is used. Both are flat stats so you have to calculate the actual net armor rating from the flat stats which turns into a percentage: damage is reduced by that percentage. Armor breaks count as "negative armor." As of the last time I checked, armor break and armor are calculated separately and then combined. In other words, you DR your armor and you separately DR you "negative" armor breaks, and you then subtract the armor break percentage from your armor percentage. Oh, there's also armor penetration which allows an attacker to essentially reduce the amount of armor the target has. It also works independently of armor last I recall.
  
  Crits are more complicated.

  Thanks for your comment!
  
  Just for further clarification, let's take the example of a champion that arbitrarily has an attack rating of 100 and the defender has no armor, no resistances. There are no buffs or debuffs in play. The defending champion is not blocking. Under these circumstances the attacking champion would do 25 damage with a light attack, 40 damage on a medium attack and 85 damage on a heavy attack? Is that correct @DNA3000 ? Do these percentages vary from champion to champion?

  0
• Cendar333 Posts: 303 ★

  September 2019

  And just for clarification to everyone here, like I said I want to make this video for new players. I just want to break down the specific stat "attack rating" and take a simple case with no additional resistances/armor, non-blocking and no critical hits. Just how much damage would a champion do with each of the basic attacks if everything else were completely vanilla and unmodified.

  0
• DNA3000 Posts: 18,660 Guardian

  September 2019

  Cendar333 said:

  DNA3000 said:

  The basic idea is that most attacks do some multiple of attack rating in base damage. For example, all light attacks do 25% of the champion's attack rating in base damage. My recollection is that medium attacks do 40%, and heavies do 85%. Special attacks don't follow a rule like this.
  
  Anything that buffs attack rating automatically increases the base damage of any attack that scales with attack rating. Base damage is then increased or decreased by damage buffs and debuffs. Starting from 100% (base damage) your outgoing damage is increased by or decreased by damage buffs linearly: add them all up, and that's your final outgoing damage.
  
  When the damage "lands" there's a separate set of complex calculations that happens. Armor and resistances are calculated and your damage is reduced by that. If the attack is physical damage then physical resistance is used, if the attack is energy then energy resistance is used. Both are flat stats so you have to calculate the actual net armor rating from the flat stats which turns into a percentage: damage is reduced by that percentage. Armor breaks count as "negative armor." As of the last time I checked, armor break and armor are calculated separately and then combined. In other words, you DR your armor and you separately DR you "negative" armor breaks, and you then subtract the armor break percentage from your armor percentage. Oh, there's also armor penetration which allows an attacker to essentially reduce the amount of armor the target has. It also works independently of armor last I recall.
  
  Crits are more complicated.

  Thanks for your comment!
  
  Just for further clarification, let's take the example of a champion that arbitrarily has an attack rating of 100 and the defender has no armor, no resistances. There are no buffs or debuffs in play. The defending champion is not blocking. Under these circumstances the attacking champion would do 25 damage with a light attack, 40 damage on a medium attack and 85 damage on a heavy attack? Is that correct @DNA3000 ? Do these percentages vary from champion to champion?

  That's correct so long as the attack doesn't crit, and as far as I'm aware this is true for all champions.

  0