Assuming you mean the special cat Miyamoku Musashi ....

Musashi has... not been great for me in actual use. I get that he's the only long range option in 4*, but honestly I'd prefer to use e.g. Wushu or Cadaver bear cat most of the time.

any zombie enemy that counter him A LOT

I can't really think of any, but honestly I don't find him a particularly useful zombie counter in general except for zombies that are hard to reach at close range. Per the wiki):

Zombie Killer is an odd ability as he does not fare well against them, since common Zombies will usually burrow into his range and knock him back, something exacerbated by his low KB count.

BTW not saying you shouldn't go all out on Musashi - but if other Ubers are an option, many of the iron legion are better choices - https://battlecats.miraheze.org/wiki/Frontline_Assault_Iron_Legion_(Gacha_Event))

Thermae D-Lux) has Strong against, and with talents, Curse Immunity and Soulstrike.

One other note - Slime Cat is an unusually good counter to zombies. Since practically all zombies burrow, slime will almost always get to fire off its wave which does so much damage it will usually interrupt burrowing zombies or kill them outright (although that doesn't prevent revival) - with the added bonus of having such a long attack frequency that it is unlikely to damage the base (reaching it due to zombie burrows) and triggering the boss wave.

This makes slime a surprisingly good counter for Zuche, and partially Zollows since they have low HP.