Magic Resistance and Magic Penetration

Note: Increasing a caster's Path skill through items or battle spells will increase spell pen. However, increasing a caster's path skill through communions or gem usage will have no affect on a spell's pen.
Note #2:
Big thanks to Reddit User ChesTaylor for this comment:
"The "hard to resist" tag is "hardmrneg" according to the modding manual. The mod inspector turns up two spells with that tag in vanilla:
LA Arco's "Curse Tablet" and Niefelheim/Jotunheim/Utgard/Vaettiheim's "Seith Curse", both of which are rituals that curse an enemy commander (surprise surprise) at range.
The tag also shows up on a few weapons, used by doom horrors, legions of gods, and Yomi et al's Gozu Mezu."

[@kirbyone]

I have found recently that the best lessons Last Pretender teaches on magic resistance are taught in person

[@pirateray]

great video
i always suspected the cast of Friends were powerful astral wizards

[@Eivael]

Just saw this and it's really nice and informative

[@Caratacus1]

Clear and useful information to an average Dom player like me. Thanks!

[@matan8074]

Just found the video on redit, it has brilliant production value, I have learnt a lot of new things as well as cleared up some things that confused me

[@BallHair-bq2yz]

Great video

[@catsareevil101]

Your alive! Thanks for the video.

[@Madhattersinjeans]

Very helpful.

[@lassenlautta]

So do you get +1 pen for every 2 levels over the requirement and +1, or is it +1 for every multiplicative of the requirement over +1 for rounding?