Heavensward
Consume. Ascend friendly units, then Advance the highest Health friendly unit on the new floor.
““And as we follow the Rail into battle to reclaim Heaven from the Titans, the spirit of the fallen will be carried by those who yearn for freedom. For we that have been tried in the furnace of expulsion will form a single, tremendous force that will bring peace to all!”—final chapter of the Tome of the Lost Path”