Ran the Gatorman Witch Doctor with 10 Dygmies in a 35 pt. tournament yesterday against Cryx and all I can say is holy baby Jesus! For various reason's Cryx has ALWAYS given me the MOST trouble of all factions. The witch Doctor granting the dygmies the undead quality was a god send & completely shut down his army. The cryx player was planning to use the kills he gained from me to generate more undead models to stuff down my throat via his necrosurgeon. Thankfully the dygmies being undead didn't allow him this tactic and I was ultimately able to use my far strike'd bomber to get close enough and throw two barrels at his zero camping Scaverous and win by caster kill.
Yes the Champ hero is nasty in melee and provides a decent CMD 10 check, but when playing vs. cryx I HIGHLY recommend using the Gatorman Witch Doctor instead to give your units the undead quality (and the odd magical attack when needed)!