The Cult of a Thousand Eyes

After armies have been set up but before the first battle round begins, pick up to D3 different enemy units. For the rest of the battle, you can re-roll hit rolls for attacks made with melee weapons by friendly CULT OF A THOUSAND EYES MORTAL units that target those enemy units.

You can use this command ability at the start of your hero phase. If you do so, pick 1 friendly CULT OF A THOUSAND EYES MORTAL unit wholly within 12" of a friendly CULT OF A THOUSAND EYES MORTAL HERO. Until the start of your next hero phase, enemy units do not receive the benefit of cover against attacks made by that unit.