Ways to solve uber ele spell penetration?

Please post whatever methods you know to mitigate uber elemental spell penetration.

EDIT: Some people assumed disrespect because my post was short. We must avoid this.
Just point me in right direction, I will google things you point out myself. I don't expect or demand anyone to spend more time on their reply than I have spent making this post. Appreciate it if anyone decides to give a longer reply though.

Thank you for the input:
BaumisMagicalWorld
Mashgesture

Honestly depends on the build.

All the stuff Baum above posted, does provide what you are looking for; but throwing these recklessly on without knowing your location on the tree, items in use, or other things may not really be of much help.

Baum basically just gave a run down of every defensive they could think of.

You could have several of these; but have a 3k life build and not scale any armor and end up in the exact same dilemma you already are in.


A more detailed and critical approach would help with a POB but ill throw in stuff as well:

CWDT - Molten Shell if you have any armor.
+max res on jewels, they now roll as suffixes.

Proper flasks for specific Ubers as well...

For example:
Sapphire flask; enchant use when chill flask for the UMaven (cascade of pain and the ball degen)

Exarch can bring a Ruby Flask; enchant use when ignited (annihilation, and the balls)

Hope this helps ❤️

I am not presenting POB to fix because that is not the goal of this post. I am looking to expand my knowledge about defensive mechanics that actually work and arent noob traps for when I make my next build. Ofc I will be looking to round it out properly. But right now just compiling a go-to list of defensive tricks.

Also it does help, thanks, especially the specific-activated flasks tech.