I just started playing Shield off and on since Christmas (it's when I got it and my new Switch (I love it)) - I haven't played Pokemon since Crystal I think?
I've been having some difficulties with the Dragon Gym, my team isn't great, I have no idea what my Pokemon are off the bat so I'll do some poor descriptions of them - I'd love to know what other pokemon I could get to help me with my Gym Battle

I'm using
>Some sort of gifted Mewoth that's in a red ball
>UFO Bug
>Soccer Rabbit
>Bug/Crab with giant rock on its back
>The new Slowpoke with mustard on its head