This magical bag may seem like an ordinary Bag of Holding, but upon closer examination this bag has a few additional properties. While using this bag as a weapon the wielder gains a +1 one to damage rolls for each 50 lbs. of weight in the bag up to a max of +5 (max. 250 lbs.). You must be able to carry the weapon to be able to use it.
Curse. This Bag of Wacking is cursed. Whenever someone puts an item with a worth of more than 5 gp into the bag, the item is teleported to another dimension instead of the pocket dimension. Destroying this curse also destroys the enchantment, making the Bag of Wacking a normal bag instead.
Proficiency with simple weapons allows you to add your proficiency bonus to the attack roll for any attack you make with it.