The cudgel claims it is 1h/2h/1h, which I think means it's supposed to be able to be used in one hand without a shield, one hand with a shield, two hand without a shield, and two hand with a shield but using one hand weapon proficiency and receiving the two hand with shield nerf that the bastard sword morning star and longsword also get. However, when you put the cudgel in two hand mode and equip a shield, you hold the cudgel in your hand but cannot attack in a manner similar to the great lance, except you can still block. So I recommend either removing the ability to use it with a shield in 2 hand mode, adding the regular one hand attacks when used with a shield in 2 hand mode, or keep it how it is cause this really doesn't matter and I'm probably the only person to ever notice ever except for other people who also noticed.