3 hours/mana

As two actions, you touch a willing creature to grant it the ability to see in the dark. For the duration, that creature has darkvision out to a range of 10 meters. If it already has darkvision, its range increases by 10 meters.

Augment

You can target one additional creature for each additional mana expended. The creatures must be within 5 meters of each other when you target them.