This enemy has high health and high attack power, and may knockback Cats. Has a laggy attack animation, but attacks rapidly.
Try and use high damaging Cats like Bahamut (normal/evolved) and Ururun Wolf, coupled with meatshields like Eraser Cat and Crazed Wall Cat. Alone it is pretty easy, but when there is multiple, a lot of meatshielding is needed. Like above, cats with knockback ability help because not only making them stay away from your cat stack, but interrupting their long attack animation.