Question Regarding Blizzard IV

[Sleigh]

Okay so here's how it works:

You can only cast B4 in Enochian + being in Umbral Ice phase. It refreshes Enochian by last initial duration - 5s. You have to be in Enochian at the time of cast, not the start of cast, or it will cancel out. You are supposed to do 2 B4s per every Enochian use.

Hope that helps.