Streak and the mana cost before 4 seconds.

olsborg · November 2014

This has been the issue since the nerf was introduced. Im fine with the nerf, its np. But the +50% extra mana cost is actually 78% or so.

My cost goes from 251 to 446 if I cast the next streak within 4 seconds. Its apparently not taking any cost reduction from light armor or such into account. Its been like this since the patch, Id like to know if it is intended or not, if it is...please amend the tooltip. Thanks

ZOS_GaryA · November 2014

Hey there @olsborg,

We have investigated the skill and it appears to be working as designed. Cost reductions are applied to the base magicka costs.

For example, let's say Bolt Escape costs 100 mana. The second cast would be 150 mana.

If you have a -10 magicka cost reduction ring, the first cast would be 90, but the second cast would be 140, as the reduction applies to the full value of the second cast. Essentially, cost reduction is second in the "order of operations."

Hope that helps!

olsborg · November 2014

@ZOS_GaryA Im not entirely sure I understand what you mean. I could just blame it on the fact that english is my third language:)

But according to my own math, my streak cost being 251 (on the tooltip) goes to 446 after the first cast (on the tooltip). Thats roughly 78% increase.

According to my own logic and math, a 50% increase in cost should be roughly 376 not 446. Im not saying youre wrong, just that maybe my thick norwegian head dont understand how the cost is calculated. (and my math skills are not the most advanced)

ZOS_GaryA · November 2014

Hey there @olsborg,

Let's see if we can make it more clear (and for a third language, you're doing really well!)

The basic formula would look like this:

(Skill cost x increase modifier) - cost reduction = Cost

as opposed to

(Skill cost - cost reduction) x increase modifier = Cost

So in the above example where the base cost of Bolt Escape is 100, and you have a -10 cost reduction ring, it is:

(100 x 1.5) - 10 = 140

Which, if you are only accounting for the base cost of Bolt Escape at 90 magicka, is a 64% increase in magicka cost. This is due to the way the formula calculates. You're likely thinking that cost reduction is applied first, which would look like this:

(100 - 10) x 1.5 = 135

Which would be a flat 50% increase from your base value including cost reduction, which is not how it calculates.

Hope that helps!

olsborg · November 2014

Thank you;)