Anti-Magic

From the Might and Magic Wiki - Might and Magic, Heroes of Might and Magic, King's Bounty

[edit] Description

Anti-Magic makes the target immune to all spells for the duration of the combat.

Level: 3 Cost: 5

[edit] Comments

A powerful, though double-edged, weapon anti-magic basically acts as a continuous Dispel on the target. Any spells on the target are dispelled (including potion effects) and the creature is subsequently completely immune to all spells - friendly and hostile.

This is the one spell which can't be removed by Cancellation, Dispel or Steal Enchantment.