This is the Enemy Base found in Day of the Cats event.
Similar to other "animated" bases, this Cat Base is immune to all effects (Slow, Stop, Knock back and Weaken) plus an ability to do a very long shock wave attack, similar to the player's Cat Base if only a Cat step in its range.
This Base's shock waves can cover the full map in the second and third stage, 85.35% the length of the first stage.
Its health is visible to see like all other Enemy Bases.
Trying to stall the Killer Cats outside of this base's range to avoid shock waves is the best idea.
Time between attacks
500 (area attack)
Creates level 20 shock waves (100%);
Immune to Stop, Slow, Knockback and Weaken effects.