Tribal Spirit

Tribal Spirit is an ability possessed by Tribals, Fury Barbarians, Shadow Barbarians and their creatures, when they're led by their faction lord/lady.

Creatures increase their Tribal Spirit when they're active on the battlefield and lose it when being passive. Tribal Spirit has two uses: it strengthens the creature in various ways, and it is expended to partially resist incoming damage.

Tables with events and their effect on Tribal Spirit = TBD