Wurrzag is a Level 4 Wizard and may generate his spells from either or both the Little Waaagh! and the Big Waaagh!, just like any other Level 4 Shaman. Being Mork's current favourite, Wurrzag adds +1 to the casting total of each spell he attempts. Also he cannot Miscast. If he rolls a double 1 the spell fails and he loses any dice stored in his Squig, but is otherwise unharmed.