Larracos's upper-level aqueduct, cracked by Carl's bombing and spilling lava across the 65th and 66th levels.
Moments after the Shit Just Hit payload detonated, a huge chunk of the top few levels of Larracos cracked and fell away, plunging into the city below. This was part of the aqueduct infrastructure.
A black and red glob of steaming lava oozed out over the edge, spreading unevenly across the tops of the 66th and 65th levels — luckily on the other side of the ring from Carl. Some of Larracos's own defensive towers ended up standing in the lava and developed health bars over them.
Cracked, collapsing stonework at the top of the funnel, weeping a black-and-red glob of steaming lava over the edge.
Collateral casualty of the bombing whose lava reshapes the upper-level battlefield.