Wartime The Battle of Valyance Vale Board GameValyance and Firebrand have gone to war! Units clash in the skirmishes, but the fight is gritty, with little time to think and plan as sand timers dictate the activation of your units. When a unit moves, attacks, cast spells, or uses a special ability in Wartime: The Battle of Valyance Vale, a sand timer is flipped. The unit cannot be used again until the sand timer is drained, then that sand timer (or another one) can be used to activate the unit