I've been testing a Rhyas Rearguard Tier list at 35 pts. for an upcoming tournament.

Rhyas +6

Typhon 12
Neph. Soldier 5
Neph. Bolt Thrower 6
Shredder 2

Min. Blighted Swordsmen 5
Blighted Swordsmen UA Tier Free
Min. Ogrun Warspears 5
Ogrun Warchief 3
Shepherd 1
Succubus 2

Tier benefits:

All stealth turn 1
Precast upkeep spells and no upkeep cost round 1
Free UA

While it is a bit weak on armor cracking, I've found it to be surprisingly mobile despite the lack of pathfinder. So far I have caster killed Thyra and completely destroyed a eVlad tier list army (still lost to Vlad the one many army, but did get him down to two boxes. Actually had a crit decap from Rhyas and only needed to roll greater than 5 on three dice - so of course I rolled 5 total.)

The star has been the Warchief and Massacre. The succubus is allowing me to spam it out like I've never been able to before, and the Mat 8 Reach berserker pow 14 has taken out two thirds of a choir unit and almost killed Thyra, and destroyed a min Uhlan cavalry unit. The last game I threw Massacre on a shredder and it took out three of the khador spear infantry.

In the vlad game, by end of turn three he was down to a half unit of the spear, vlad and the dog.

It's a fast attacking army that's been a lot of fun to play. Just thought I'd share.