Open a vent on an empty square for 9 of your turns. Every 3rd of your turns it erupts: pawns of both sides adjacent to it are destroyed, and other adjacent pieces except kings are pushed one square outward if the square is free.
You draft Volcanic Vent in Buff mode. Activated: you choose when to use it, and using it is your move for that turn.
As a attack card, it removes or detonates a piece directly.
“The crack glows. The neighborhood reconsiders.”