Chris' words during the reveal: "has unique corruption outcomes, such as REMOVING A RANDOM MODIFIER or transforming it into a different random corrupted unique" (https://youtu.be/52cm3aqo9Gw?t=162). Assuming that "removing a random modifier" works exactly like an annul it can basically be left with any subset of its mods.
So the chaos res downside can be totally removed and if a build only uses life and mana for example it could use a Glimpse with the ES increase annulled along with the lightning resist penalty. Also if the "can be modified while corrupted" mod is not removed (which would stop any further annuls too) in this way you can even add a lab enchant on it later.
I think this went a bit under people's radars since I see no one talking about it.
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