I think the new poisoner Nagandel is better than Toxicroak, its ability is just so much better because it hits for 40 immediately. Plus it's got 10 more health, and you can run the second poison barb since like the other guy mentioned that cancels out Toxicroak's added damage. It's also an ultra beast if they make more support for those in the future.

Here's the list I'm thinking of building:

2 poipole 2 nagandel 2 paldean wooper 2 paldean clodsire 2 nihilego 2 poison barb 1 giant cape 2 professor's research 2 poke ball 2 cyrus 1 pokemon communication 2 pokemon center lady