the Aetherian version of the nuclear warhead. though instead of using Uranium and plutonium. Crystal bombs use Highly unstable power crystals that explode into a huge nova that makes the average nuke look like a firecracker

these weapons are part of forgotten technology as no one uses them. because of the Near extinction that they faced

However as crazy as the Voidians are, even they didnt want to create these even though the voidians have a very destructive nature