Diablo® III

Mitigation per Second forumla vs DOT spells

So I have been thinking for awhile of a formula to figure out how much unmitigated damage you can take per second through mitigation and life regen. Mostly how much dmg from Rend or Haunt can you take per second without losing life.

Simple
(Life Regen per sec/(1 - Total Damage Reduction %))

Advanced

Life Regen per Sec/ (1- (Total Armor/ 3150 + Total Armor)) * (1 - (Total Resist/ 315 + Total Resist)) * (either .65 for Barbs/Monks or .70 for WD/DH/Wiz) * (1 - Elite dmg reduction %) * (1 - Ranged dmg reduction %) * (1 - Any additional reductions such as Jungle Fortitude)

Not sure any dot dmg is considered melee.

The way Elite dmg and ranged reduction is calculated is on a piece by piece calculation. So if you have one piece of elite reduction that is 7% it is 1 - .07 so it is .93. But let's say you have BT boot's with 7%, 7% from litany, 7% from BT set, and 7% from storm shield. It is calculated as
(1 - .07) * (1 - .07) * (1 - .07) * (1 - .07) or .93^4 being 0.74805201

Now D3up is a good place to get your damage reduction numbers for Armor and Res. Just remember though for Monk's and Barbs the 30% is already calculated in so you will have to * your dmg reduction by .95 and for WD/DH/Wiz by .7

The damage reduction percents though when you look at your characters in D3 are wrong. They are based on level 60 monsters when they should be calculated on level 63 monsters.

A couple of examples

First my WD BigBadVooDoo

(2,620 Life per sec)/ ( (1 - (3,751 / 6901)) * (1 - (782 / 1097)) * 0.7 * .93 * (1-.15)(JF) )

2620/ ((.4565) * (.2872) * .7 * .93 * 85 )

2520/.0725

34,759 dmg per sec I can absorb simply by my regen.

Second example
Someone with a ton of regen and mitigation
Arndawg's Barb
http://us.battle.net/d3/en/profile/arndawg-1193/hero/17180467

Now it is best to assume he will have WarCry up always and to include Inspiring Presence in his calculations of Life Regen per second.

5,180 / ( ( 1 - (11,072/14,222)) * (1 - (1000/1315)) * .65 * (.93 * .93 * .94 * .93) * (.94) )

5,180 / .2215 * .2395 * .65 * .7561 * .94

5,180 / .0245

211,429 dmg per second

Now let's calculate to see what it is with Ignore Pain up

5,180 / (.0245 * (1 - .65)

5,180 / .008575

604,082 dmg per second

Hopefully someone more talented with spreadsheets could somehow implement this. Let me know if I made any mistakes.
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One minor fix: change the 3150 and 315 to 3000 and 300 respectively. The 3150 and 315 numbers are for level 63 attackers; whereas the 3000 and 300 numbers are for level 60 attackers (other players).
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Iria's rapid fire special PvP build's Boosted DPS with Marked for Death = 627k dps

I better have ignore pain up just to breathe around that build.
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06/19/2013 04:07 PMPosted by Iria
One minor fix: change the 3150 and 315 to 3000 and 300 respectively. The 3150 and 315 numbers are for level 63 attackers; whereas the 3000 and 300 numbers are for level 60 attackers (other players).


You sure they are considered level 60?
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Remember that Rapid Fire - Fire Support = 438% weapon damage with an extra 145% weapon damage rocket every 0.5 seconds. The 627k dps is according to a 100% weapon damage attack!
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Iria's rapid fire special PvP build's Boosted DPS with Marked for Death = 627k dps

I better have ignore pain up just to breathe around that build.


Speaking of Rapid Fire I am trying to figure out how the damage is broked up. Is 6 arrows per sec or like RoF just 2 ticks per attack cycle. Cause if it is a bunch of arrows you should be able to block at least the non-crit ones.
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06/19/2013 05:26 PMPosted by Flim2theFlam
One minor fix: change the 3150 and 315 to 3000 and 300 respectively. The 3150 and 315 numbers are for level 63 attackers; whereas the 3000 and 300 numbers are for level 60 attackers (other players).


You sure they are considered level 60?


No, I am not sure but it would make sense as the formulas are (level)*50 for armor scaling and (level)*5 for resistance scaling.
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For Rapid Fire, the number of arrows per second scales with attack speed. I think the number of arrows is 6 per volley and each does 73% WD for a total of 438% WD. All hits can be blocked/dodged individually, so a shield will be useful but not completely life-saving.
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I tested it and we are considered level 63's in the Temple. I even tried on Normal mode.
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