The player who prefers ranged attacks covets this spell, and rightly so. The benefits of standard precision are given to all friendly targets, rendering the range-oriented army a force to be reckoned with. However, you cannot cast this spell on your own army if your hero is wearing the Mind Shield. As it is considered a mind spell, undead heroes and mechanical creatures are unaffected. The Crown of Enchantment can confer on the caster the ability to target some otherwise immune creatures with mind spells.