Unstable black holes are entities created during the fight against The Ambassador. One is created for each player in the arena.
Unstable black holes spawn with an adrenaline bar appear above them, which fills up within a few seconds. If this occurs, the black hole explodes and deals approximately 8000 typeless damage to all players in the arena. Because the black holes have high life points, it is infeasible to attempt to kill them before it explodes. They can instead be instantly dispelled by stunning abilities such as Backhand, Binding Shot, and Impact; this prevents the black holes from exploding.
The Flanking perk, if used from north of the black hole, prevents the stun from the affected abilities from occurring, making them unable to disrupt the black hole. This is intended behavior.
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