I would adjust things in order to run:
Ahriman (Warlord)
8 Tsons- Rhino w/ Dozer Blades
8 Tsons- Rhino w/ Dozer Blades
9 Tsons- Rhino w/ Dozer Blades
2 Oblits- MoT
2 Oblits- MoT
2 Oblits- MoT
So I fielded this army against three Predators, one trilas and the other two twin-linked lascannon with heavy bolter sponsons two Rhinos stuffed with generic Space Marine squads, the other half of them held back with their heavy weapons, a chapter master with assault marines, a pair of dreadnoughts and I think Sternguard and.. I had all sorts of bad luck.
The Obliterators didn't do much to the tanks, failed their invulnerable saves and got
ID'ed by lascannons, I rolled a 1 for the warlord trait and I kept rolling ones and twos for the reserve rolls, and then Ahriman and his Rhino didn't show up until turn 4. The Rhinos didn't get to do much and one of the Sorcerers killed himself from perils while trying to Doombolt a Dreadnought. On the bright side I kicked the Sons in the transport out and glanced the Dreadnought to death on it's rear armor.
In the end I won, merely because I scored two objectives and he only had one for the Rhino in the corner that was left alone all day. So I suppose it wasn't a total loss. I might end up switching the Tzeentch marks on the Oblits to Nurgle so they don't get
ID'ed, unless I get some better dice rolls next game.
So.. Now that I don't have to worry about restrictions anymore, bar the 1500 points, I'm looking to improve the list.