Here is a theme I have kicking around my head of a fast moving Nurgle army. I was working for more for a fun list
to play than a power spam list.
UPDATE: I replaced the Lord's Black Mace with a PF and LC combo and added a Sigil of Corruption for saving throw insurance.
Biker Lord, w/ MoN, VoLW, PF, LC, SoC
Deamon Prince w/ armor, wings, MoN
Hellbrute w/ lascannons, missile launcher
x7 plauge marines w/ x2 meltas, PF, Rhino
x7 plauge marines w/ x2 plasma, PF, Rhino
x6 Bikers w/ MoN, x2 plasma guns,combi-bolter, power weapon
Defiler w/ power scourge
Havoks w/ 2x heavy bolters, 2x rocket launchers (flakk missiles), MoN