Could Alolan Muk be a decent card? With power of alchemy it can stop all basic abilities from affecting you or your opponent. So oranguru is stopped, Shaymin is stopped(expanded), and quite a few other cards are as well. It’s attack is a little overpriced but it would mainly be used for ability.
Now lets talk about alolan grimer.
For zero energy it can poison the opponent which helps give a potential knockout. Poison, switch, prize, and rewash.
Those are two potential strategies I see possible for competitive. Tell me if this won’t work. But until then I am going to attempt putting this in my deck.