Diablo – Does +percent damage-type increase a percentage of your weapon-damage, or only damage of that type

I was just running some tests on attackspeed and dots, and the TL;DR is that Attack Speed is a useless stat for dots.

I was able to add 25% attack speed between a ring and an amulet without effecting any other stats. I had no other bonus attackspeed, but I was wielding a pretty fast ceremonial knife to start with. I did all my testing on the Zombies outside Tristram in hell.

My stats, off the character sheet: Damage: 1273.63 Damage increased by intelligence: 870.00% Damage increased by skills: 0.00% attacks per second: 1.4 Critical Hit chance: 5.00% Critical hit Damage: +50.00%

Equipping my two attackspeed items changed: damage: 1592.04 Attacks per second: 1.75

First I checked locust swarm. I didn't record the order of ticks (which seemed random), only the number of ticks of different numbers.

Without attack speed I saw:

• 15 ticks, 11*200, 4*240, 1*40 = 3200 damage total
• 15 ticks, 5*240, 10 * 200 = 3200
• 16 ticks, 4 * 240, 1 * 40, 11 * 200 = 3200

With attack speed I got:

• 15 ticks, 5*240, 10 * 200 = 3200
• 15 ticks, 2 * 240, 1 * 120, 12 * 200 = 3000 (user error?)
• 16 ticks, 3 * 240, 1 * 80 = 3200
• 16 ticks, 1 * 240, 1 * 160 = 3200

Haunt was a little less clean. Most ticks were 213, but the increments were all still in multiples of 40, and it seemed like the extra 3 damage varies between the casts with different numbers of ticks. Without attackspeed I got:

• 23 ticks, 5*255, 18 * 213 = 5109
• 24 ticks, 1 * 43, 4* 255, 19 * 213 = 5110
• 22 ticks, 10 * 255, 12* 213 = 5106
• 23 ticks, 5 * 255, 18*213 = 5109
• 23 ticks, 5 * 255, 18*213 = 5109
• 24 ticks, 4*255, 1*43, 19 * 213 = 5110

with attackspeed:

• 24 ticks, 1 * 83, 3 * 255 = 5108
• 24 ticks, 1 * 43, 4 * 255 = 43 + 1012 + 4047 = 5110
• 23 ticks, 5 * 255 = 5109
• 23 ticks, 5* 255 = 1265 + 3834 = 5109
• 23 ticks, 1* 128, 7 * 255, 15*213 = 5108

Result: I'm nearly sure I just miscounted that one locusts (counting two different things while kiting even slow moving mobs is harder than it looks :/), and there's what looks like rounding error with the numbers out of haunt, but we were looking for a 25% damage increase, and it's just not there.

Bonus elemental damage is overridden when using a skill that does damage of a particular specified element. You still receive the damage bonus, but it is no longer of the element specified by the item.

For example, if you have a weapon that does 20-40 damage, and a bonus of +4-8 Fire Damage, and use an ability that does 100% Weapon Damage as Lightning Damage, you would do 24-48 lightning damage with that ability.

If the ability does not specify a particular damage type, then it will deal damage based on your weapons inherent damage type.