I died because VFX Siphon Aura of rare enemy didn't load in

I started a delirium map on Augury and fought a rare mob that wasn't looking any unusual and then I suddenly died and like 3 seconds later the VFX of the Siphoning aura pops in and I understand what killed me.
It's early access, ok, but this is uber frustrating. If you are not 100% confident that mechanic is fair and that players can deal with, then tune it down untill you got it sorted out.