Union of Souls Boss Stacks

Is it going to be a perma thing after the abyss? I hope so because thougher bosses are much more enjoyable for me since their standart version is melting over in seconds.

Here is an example boss fight with some stacks:


With abyss rares it easily goes to the x30 and the fight gets even harder and if the boss mechanics are not bs it is really enjoyable imo.