Talk:Red Jacket/@comment-2001:E68:5436:41C:45C0:54C4:3F50:ABD2-20170919102250/@comment-29816397-20180704211305

(Warning, Math incoming)

It doesn't add 30%, but adds whatever 30% of the current rate is. In math-terms, it's not "current death rate + 30", but  "current death rate + (current death rate * 30%)" (which could alternatively be written as "Current death rate * 1.3")

So excluding King Hassan, all non-np attacks have 0% chance to kill. So, with this CE, it isn't "0% + 30% = 30% chance to kill". Instead, it's "0 + (0*30) = 0%", which means it won't do anything. It would only add something to attacks that already have a chance to kill, which includes only certain Noble Phantasms, and all King Hassan's attacks. Sadly, it's not as great as it sounds.

If a NP has a 10% chance to insta-kill, with this CE, it would only be 13%. If the NP is 50% (does anyone even have an instakill that high of a chance?), with this CE it's now 65%. This isn't factored in to the enemy's death resistance. If the death-resist is 50%, with the previous two numbers after the CE factors in (13 and 65, respectfully), the chance of actually killing that enemy is 6.5% and 32.5% instead of what they would normally be- 5% and 25%.

So it only makes a difference to skills with a high death chance and enemies with low death resist. So it helps if you have a death-team already, like King Hassan, Shiki, and Nictus.