That plus Grass/ Dark makes ... no sense for it and would be lol worthy for a defensive Pokemon.
I think the Pokebeach leaks arent 100% and that the Frog is dark with Chespin being either fighting or steel or ground (like ever other armor themed Pokemon I can think of)
The thing with the Magelief leaks is that while they got a lot right, they got the minutia wrong.
1. Names: Panchum, Malimar, Meowstick...all wrong
2. Saying the professor is called Patrice and gives you the starters. The starters are given to you by Tierno who got them from Sycamore. It also listed Sycamore later indicating it's not just a name change.
3. Fairy type compatibility. It listed Psychic as resisting it, and neglected Poison/Steel resisting it.
4. Mewtwo Mega Evolutions: It said the second one was more akin to Mew. You could argue they got them the wrong way round, but they specifically specified that the one we knew was the one we knew.
5. It said we have two rivals. We actually have four.
6. It said we can only ride Gogoat. We can ride Skiddo and Rhyhorn among others.
Think there's a few others. I'm just saying we shouldn't take everything said at face value