Exdeath Enhanced Blizzard III instakill?
So of course I'm doing the weeklies for D1-4 normal so I can get my Dark Knight geared adequately, and I notice people dropping like flies early on in D4 against Exdeath. This is weird since it doesn't look like people are stacking high vulnerability debuffs before going out either, and there really isn't a one-hit kill move besides the Doom during phase 1. Then I see both of the healers get knocked out and I realize something terrifying; the enhanced Blizzard III is one-shotting players if they fail the mechanic. Normally I actually see a good number of players simply not bother (or not notice) with the Blizzard III mechanic early on since it does very minimal damage even if you fail it, and as long as you avoid stacking the vulnerability it really doesn't make a difference. What's weird is how sometimes the player will be perfectly fine and it will function like it always has, and I can't seem to tell what is triggering this weird instant death scenario.