Tactics for Rampart.

another question – which unicorn provides the percentage? here's the trick: the auras stack: 20 + 20 + 20 = 60%. for example, with dwarves surrounded by three unique units with magic resistance from the expansion. 100 - 40 = 60 (dwarven vulnerability). 60 / 100 = 0.6 (one percent of it). 20 * 0.6 = 12, 60 - 12 = 48% (dwarven vulnerability, taking into account the hero's resistance). then, using the same scheme, calculate the unicorn's resistance, in the order of which unicorn approached the dwarves first. here's the priority scheme for resistance:
basically:

unit resistance, hero's resistance skill, hero's special ability (Togrim, and in the same sequence as the unique units, meaning with level-based resistance + 5), artifacts, unicorn aura.

if any element of this chain is missing, it won't interrupt the chain, but will continue without taking that element into account!

it would be simpler to just sum everything up, but the developers created this system with a certain percentage probability for the spell. if it were about the sum, Rampart would be the undisputed leader with the best hero in Heroes of Might and Magic, guess which one...

regarding the aura – put all the dwarves around the unicorn! that's what the aura is. and those people who think the aura is around the rear... I feel sorry for those people