Can monsters pass through wildwoods if their bases are too big to fit between the trees?

[themortalgod]

This came up in a game I played today. One of the first times I've played against Slyvanath.  The argument was that, as per terrain rules, you cannot actually move the trees on the base and they are effective barriers. As a result, my opponent argued that anything with a base wider than the gap between two trees cannot pass through a wildwood so he promptly lined up 6 bases on wildwoods on turn 1 and confidently was sure all my monsters had to walk all the way around them. (Which took all game)

I didn't have any actual evidence to disprove him so I just played it that way, but it felt pretty overpowered. I had 4 behemoths and all 4 were effectively taken out of the game because 6 Wildwood in a row covers most of the board. Is this actually how they are meant to be played?

 

thanks

[Realmhead]

I think that you can't move between them is correct. But you are allowed to climb up and over them. And you are allowed to end your move on top of them.