Very similar to the Corrupted Cat Base found in the Day of the Cat event, this base can do a very powerful Shockwave attack that can cover a massive area. Like other bases, it is immune to all negative effects.
Its Shockwave has a very long attack reach, covering the whole stage every time it appears. As usual, Octopus Cat can render it harmless.
It is Single Target, and will therefore hit the frontmost unit, so if your wave blocker is in front, usually its damage will kill that wave blocker. The wave will then destroy all your other units, so be wary of this.