If im already stacking res like say i put on a spirit for a caster, would a lo rune affect light damage taken even if im 80 over max with spirit shield swap?

Here this is interesting to know. > The absolute minimum resistance is -100%. Resistance can never be lowered to below that value.

You're answer here. > Maximum Resistance
Each character has a default maximum resistance of 75%, although certain items can raise that number as high as 95%. You can never become totally immune to elemental attacks with Resistances alone.

Lo Rune. > Weapon
20% deadly strike
Armor/helm
5% maximum lightning resist
Shield
5% maximum lightning resist

Minimum Resistance

Your base resistance levels are determined by the game's difficulty:

Normal Difficulty: 0
Nightmare Difficulty: -40
Hell Difficulty: -100

The absolute minimum resistance is -100%. Resistance can never be lowered to below that value.

The Scroll of Resistance increases your base resistance level with 10 per use.

Magic Resistance
Even though it does not appear on the Character Screen, each character has a Magic Resistance. The base is 0 for Normal, Nightmare, and Hell difficulties. The only item that can adjust this Resistance is a Crafted Safety Shield with +5 - 10% Magic Resistance. No skill or item can lower Magic Resistance. The Runeword Oath can also modify the amount of damage taken through absorption. Read below for detailed information on absorption.

Physical Resistance
While it isn't displayed on the Character Screen either, this Resistance reduces Physical damage just like the Elemental Resistances lower or increase Elemental damage. On items it is displayed as "Damage Taken Reduced by x%", and Amplify Damage lowers this by 100%, Decrepify by 50%. It is then lower capped at -100% and upper capped at 50%.

How do items of Absorption work?
After Straight Magical Damage Reduce and Resistances modified the damage done Absorb first heals a player/hireling, then reduces the damage done. Since it heals first, the double reduction rule only counts when a player or hireling is not at full life. A drawback is that if one would end up with a negative amount of life after resistances, you will die before Absorb reduces the damage done.

Absorb is perfect for swarms of Imps or Fallen Shaman, but be careful with Fire Enchanted bosses which may deal enough damage to kill you outright. Below are a few numeric examples where 1000 fire damage is taken. Note that the amount of damage reduced is twice the Absorb% times the damage because half is to nullify the damage taken, and the other half is the healing absorption provides. Note: there is a 40% cap on absorption.

Examples
Direct absorb was not tallied in the examples below, it is usually listed on items like this: "+x Fire Absorb" x being an integer. The Direct Absorb would be calculated after the resistance and percentage absorb in these next cases. (note: Heal amount of 0 = full health upon damage taken or no absorb is present)

full damage / %resistance / %Absorb / heal amount / damage taken

1000 0% 0% 0 1000
1000 95% 0% 0 50
1000 90% 0% 0 100
1000 85% 0% 0 150
1000 80% 0% 0 200
1000 75% 0% 0 250
1000 70% 0% 0 300

____

1000 0% 0% 0 1000
1000 0% 40% 400 200
1000 0% 35% 350 300
1000 0% 30% 300 400
1000 0% 25% 250 500
1000 0% 20% 200 600
1000 0% 15% 150 700

____

1000 0% 0% 0 1000
1000 95% 40% 20 10
1000 90% 35% 35 30
1000 85% 30% 45 60
1000 80% 25% 50 100
1000 75% 20% 50 150
1000 70% 15% 45 210
The complete list of all damage modifications are calculated in this order:
Energy Shield
Bone Armor and Cyclone Armor
DR and MDR (damage reduction and magic damage reduction)
Resistances
% Absorb
Direct Absorb

With high resistances, high % absorb and direct absorb, it is possible to heal from specific elements.

This post was edited by Ford300Straight on Dec 20 2017 12:42pm

It does nothing tbh. Use a hel saves u stats

This has been patched/fixed.

Don't let him know the multi knows nothing.

I think my answer is somewere in this. Thank you

This was just bunch of interesting info for all player's.

You're info is here. >Maximum Resistance
Each character has a default maximum resistance of 75%, although certain items can raise that number as high as 95%. You can never become totally immune to elemental attacks with Resistances alone.

Resists cannot go above 95 (and you need "+20 to maximum X resistance" to reach 95). Stacking resists above that still work to counter skills and gear that reduce your resistances.

Ex.: In hell, a character with 300 all res, +5 to maximum fire resist, +20 to maximum lightning resist.
Resists as they'll appear on the attribute screen: 80/75/95/75.

Then he meets Über Mephisto (which has level 20 conviction, -125% to all res).
300-125=175 all resists left.

The character will still have 75/75/75/75 resists. He can add +20 all res to get back to 80/75/95/75.

The reason stacking res matters is cause of items such as infinity that can take away -55 res. It takes away from your uncapped total resistance

So for a simple example not considering anything else, lets say your uncapped res is 130, the infinity takes away 55 res and youre at 75 res, in this case a Lo rune wouldnt help. If youre at 135 res, the infinity brings you down to 80 and the Lo rune makes it so you have 80% res.

Thanks everyone.