Arcane Channeling

You can use this command ability at the start
of your hero phase.
Pick 1 friendly Hallowheart Wizard Hero and
roll a dice. That Wizard suffers a number of
mortal wounds equal to that roll. In addition,
until the start of your next hero phase, add that
roll to casting rolls made by other friendly
Hallowheart Wizards while they are within 12"
of that Wizard.