No no, I didn’t mix it up !
The player starts with 8s CDR (Gnosis) and the first CD we see is 9-10s in the video before picking up the skill giving 12s CDR (4s more CDR), meaning 12s CDR is pointless on a skill that shows 9-10s CD as base CD. And in the video the 9s CD is before using Nullify while Shadow Pillar would be on CD.
Example at 0:45 in the video he casts Nullify first while Shadow Pillar isn’t on CD, since he’s showing the abilities for the first time, then when he casts Shadow Pillar it shows 9s remaining, which thus means to me it is base CD.
Then if you forward the video to 2:50 you’ll see he casts Shadow Pillar at 2:55, followed by Power Pillar (ability to cast a second one in a window of 5s) showing 9s CD and right after that Nullify which instantly resets the CD.
It’s interresting at 6:25 also, he casts Shadow Pillar and the CD shows 9s, then 8s, then 7s, then he casts Power Pillar and the CD goes back to 9s. When the CD reaches 5s he casts Nullify and this resets the CD, then he dies. And it’s then, during his respawn at 6:50 that he takes the lvl 5 ability, prognostication, to have the CDR be 12s instead of 8s.
There may be something else I missed but I didn’t mix up CD and CDR in my previous post.