6.
Wo-Chien lost 5 points in sp. atk and 5 points in phys. def. Doesn't seem like a lot at first glance but usually 5 points can make a difference in attacking. Those loss of 5 points in phys. def. is funny when Wo-Chien is supposed to be tanky but has one of the worst defensive typings. It is clear nobody at Game Freak tested this pokemon out.
Edit: Ok so I read that completely wrong. It lost 5 points in phys. atk., not phys. def. I feel really stupid for not catching that in the moment. That means Wo-Chien is not supposed to fight back as hard, so it is more like a leaf shield with a stick for a complementary weapon. Both of which fall apart way too easily.