U have a lot of weakness to rock type and I’m guessing ur only steel move 4 tinkaton is gigantón hammer but most rock types are very defensive so that might not help ik you have meowscarada but you should probably removing a flying or fire type and get a fighting type maybe
Hey! I think replacing Charizard with a water-type would be a great way to counter Meowscarada & Skeledirge. Then, most of your party will counter each other -
Grass > Water
Water > Fire
Grass < Fire
Grass < Flying
Fairy > Dragon
I am unsure about if I would change Kilowattrel at all, but yeah!
Remember, it's your party and my own opinion, so you can do whatever you want. :)