Cinderfields

Geysers of Boiling Blood — At the start of
each of your hero phases, roll a dice. On a
6+, a geyser explodes. If it does so, pick a
point on the battlefield and roll a dice for
each unit within 6" of that point; on a 4+
that unit suffers D3 mortal wounds. On a
6+ the unit suffers D6 mortal wounds instead.