I noticed something strange while looking at my Ulzuin’s Purifier, and I suspect there is a problem with the application of the attack and casting speed bonuses on the Kraken devotion. This is a big source of those modifiers and from my testing the most likely cause of the discrepancy I will describe below.
My build uses Kraken and Hydra since the Ulzuin’s Flamespreader is a 2-handed ranged weapon. Kraken should give +26% attack speed (13+13) and +10% casting speed (5+5), while Hydra should give 10% of each. I added up the attack speed and casting speed from my in-game gear, from the devotions and the total speed from Vindictive Flame, and got 81% increased attack speed and 72% increased casting speed. However, the numbers in the in-game character sheet are 152% attack speed and 172% casting speed, so almost 30% attack speed is missing.
If I swap the Flamespreader with a 2-handed melee weapon without attack speed (Obsidian Juggernaut for example), both numbers go down by 10% as expected since I lose the Hydra bonuses.
If I swap the Flamespreader with a 1-handed ranged weapon without attack speed, the casting speed correctly goes down by 10%, but attack speed goes down by 12% instead of the 26% bonus I’m losing.
Lastly, I replaced the Flamespreader with a 2-handed ranged weapon that doesn’t have increased attack speed but has a different base attack speed, and the % attack speed increase changed by a few %. Shouldn’t this be the exact sum of your +X% attack speed?
Here is a GrimTools link to the character in question. The same behavior can be seen on the website.
I should have changed the title, the casting speed bonus is correctly applied. I forgot to include the Seal of Annihilation at first but eventually figured out where the extra 5% was coming from.
Kraken doesn’t give you 26 “flat”/effective attack speed, it’s reduced by the scaling of your 2handed weapon, as all weapons work like
different weapon base scaling multiplier = different effective amount off same bonus speed
you can see the same effect here on 1handers Level 100 (GD 1.2.1.6) - Grim Dawn Build Calculator (press weapon swap button)
same +15% speed gloves result in 101-> 113% depending on which weapon you’re swapping to because the gun has very low base scaler compared to the dagger
Attack speed is affected by the base attack speed of the weapon.
If the base attack speed is low, it takes more attack speed to bring it up compraed to a weapon that has a faster base attack speed
The base speed for the weapon in your link is 1.5
Casting speed is not affected by the weapon speed but will add casting speed if there’s casting speed on it
Ok thank you for the explanation guys. I never looked into the attack speed numbers much and thought this should be pretty straightforward, but I was wrong.
(I’m sure someone else knows)