The Lucky Shrunken Head can only be taken by a Savage Orc Shaman or Great Shaman. It increases the Warpaint save of the bearer and any unit he joins from 6+ to 5+. If Wurrzag is in the unit, his Warpaint save is increased to 4+.
Source: Warhammer Fantasy: 8th Edition
The Lucky Shrunken Head can only be taken by a Savage Orc Shaman or Great Shaman. It increases the Warpaint save of the bearer and any unit he joins from 6+ to 5+. If Wurrzag is in the unit, his Warpaint save is increased to 4+.