How are "Teleporting Abyss Chaos Degen Proximity Tangibility" mobs in this game dude?

Nobody playtested this as melee, don't even try to tell me they did. Legitimately how am I, as any class that can't instantly kill a tanky rare, supposed to handle this? I can literally stand still and tank boss slams and standing for 0.75s within like 5m of this thing kills me. What am I supposed to do? Hit it one time every minute for an hour until it dies? Get real.

If I could just AVOID the abyss mechanic it would be fine but it's on every damned map and it seems like half of them spawn at least one of these. If I can do all other content on a map including bosses I shouldn't have to run away and totally abandon sections of a map because a single rare with this affix spawned. If it wasn't for sprint these things would be inescapable too, by the way.

Oh, and apparently the degen was NERFED recently? How bad was this on release then?

Because they don't think or test before they do anything