Well, here is what my list looked like:
Semi-cheap deamon prince with stature, wind of chaos, flight, mutation, two close combat weapons, spiky bits, aura, and deamonic strenth.
I had two rubric squads in rhinos. Champs had wind of chaos, thrall, powerfist, mutation
One walking rubric squad. the champ had bolt of change, 4 thralls, damoic strenth, and a power weapon.
9 Flamers ( hardly used this game)
9 rubric terminators. Champ had a power weapon, CCW, and wind of chaos. ( hardly used this game)
Predator: Three Lascannons, Deamonic possession, parasitic possession, and mutated hull.
he got the first turn. He tried to use one landraider to shoot my predator, which stunned it (no effect do to wargear). Then he killed one rubric marine with a lascannon from another land raider. Following that he used four assault cannons from a terminator squad and two dreadnoughts to kill two more rubrics in cover.
On my turn, I Destroyed one landraider with my predator, killing two terminators inside. My deamon prince mopped up the surviors. I then ran a rhino squad up, dismounted, and cast two winds of chaos on a terminator squad, killing all five in it. My walking rubric quad used blot of change to down a dreadnought.
After that, he just didn't have enougth men left to eat through my rubric marines.