How does magic resistance work?

[Fantomen]

It means the power of your spell is rolled against his magic resistance value. All units have an innate value of mr which can then be boosted by items or battlefield buffs.

You get a penetration bonus from certain items as well as having magic levels above those required. So a mage wearing a void eye and have very strong astral has a better chance of killing the thug in question.

[Ignus]

Excellent. I set up a level 4 astral mage communion master casting mind burn (or something like that) with 6 communion slaves.

Would this level of magic be adequate to reliably penetrate an anti magic amulet?