Powerful Tiered spells require mana—a portion of the spellcaster’s life force—to fuel them. A spell’s mana cost is equal to its Tier. Heroes gain mana as they level up. Cantrips cost no mana.
Core Rules v2 p. 44
Powerful Tiered spells require mana—a portion of the spellcaster’s life force—to fuel them. A spell’s mana cost is equal to its Tier. Heroes gain mana as they level up. Cantrips cost no mana.