[Crimson Kartoffel]

We play with three/four of each class and race in the deck. We don't play with "holding" cards. Up until recently, we could have as many cards in our hands as we wanted. This changed with too many "dog pile" endings. We can now hold 7 cards (8 if you are a dwarf.) We took out a couple of "lose your best item" curses from the deck.
Im still working on a pvp munchkin way to play. Like, literally munchkin fighting with munchkin. Thinking that will have to do with zombie cards or wandering monster cards.
Edit: And now I am incorporating using super munchkin/ half breeds with two cards of a single race/class. For instance, a warrior+warrior can discard twice as many times to a total of +6. Unfortunately, the dwarf and centaurbl are getting the short end of the stick. We are fixing that by having double dwarves hold another card in their hand and centaurs can wear another pair of shoes.