The Heron Energy Tank (unofficial name) is a device in Bomberman B-Daman Bakugaiden IV. It appears in Episode 17.
Description[]
It is a tank device that Dark Toami planned to use to extract the B-Da Energy from the Herons. The tank device is attached to 3 cages that hold the Herons. The device was placed inside the cavern, located near Heron Lake. Dark Toami used his bike to first capture the herons at the lake, and then they were brought inside the cavern, placed inside the cages connected to the device.
The device ended up destroyed at the end, and the explosion completely sealed the cave.