Has anybody figured out how the

[AcidicRage]

glyph for corruption to tick faster works?

does it scale with haste?

[Dethday]

It's on the front damn page man..

Glyph of Quick Decay: This glyph allows for the warlock’s haste to reduce the time between periodic damage effects of Corruption.

[lolbol]

Simple, let's say corruption does it's damage over 5 sec, with 20% haste 4sec.

[Galith]

It really does help to have your topic give SOME hint as to what you are posting about, otherwise most people don't bother.

Stuff like "HELP ME" and "IDK" doesn't really do taht.

[Screwtape]

Seems to fly on the dk forum. ;D

[Nillo]

Does anyone know if this has any impact on the duration of corruption? (might be troublesome if it runs out before haunt hits).

Simple, let's say corruption does it's damage over 5 sec, with 20% haste 4sec.

Haste works like :
casttime = x/(1+haste)
not: casttime = x*(1-haste)

So you need 25% haste for 4 seconds.

[Donniebrasco]

I am just guesitmating here but you would need like 80-90% haste for corruption to fall off before haunt is ready.

[gherkin]

Its the exact same for all spells

New Cast Time = Old Cast Time / (1 + Haste %) x (1+Haste Buffs, Multiplicative)

The only difference is that you replace Cast Time with Duration and divide by the number of ticks

FOR EXAMPLE:
3% Haste from Ret Paladin
30% from Eradication (was up while you refreshed with Haunt)
30% from Hero/BL
15% base Haste

18s / (1+.15) x (1.30) x (1.30) x (1.03) = 18 / 2.001805 = 9s Duration

9s Duration / 6 Ticks Per Cast = 1 Tick every 1.5 seconds.

As to falling off...
Reaching 7s or less, whereby Haunt cooldown + Travel + Lag time is not fast enough to refresh it, requires

7 = 18 / X
18 / 7 = X
X = 2.57 (minus 1 to convert to actual haste %)

157% Haste, which is only possible in gimmick fights such as Vezax or Hodir.