Cave In
Cave In is an uncommon Umbra spell in Monster Train 2 costing 2 Ember. It joins the Umbra pool at clan level 3.
Descend all units.
“I’ve only seen the aftermath, but when a level of the Crucible collapses, very few Morsels survive. The Umbra don’t even care to check for survivors, choosing instead to spawn new Morsels.”