Mod works as expected. The reduction of max MP to sustain a spell only applies to the caster.
Additional Information
This mod uses a small script to do its thing, and the use of scripts is generally something you want to avoid in STR. The occasional crash was experienced, but it's hard to say what the culprit was considering that even pure STR with no mods is known to crash sometimes too. In my experience the frequency of crashes did not get any worse with the adding of this mod, though.
Mod information
Download link
https://www.nexusmods.com/skyrimspecialedition/mods/15871
Dependencies
None
Compatibility
Additional Information