They look like fun lists! I've never tried HH with Ravyn before, as they're not an obvious fit... BUT they are one of my favourite units, and can deal with pretty much anything by themselves, so Ravyn can concentrate on other stuff. That said, there are a couple of things I like to take with Ravyn that would probably better fit the list:

Aiyana & Holt. Mostly for giving stuff Magical Weapons - invaluable against Menoth in particular (esp. in a 2-list format, and Rahn is your other list. The filthy Menites tend to shut him down rather well I find!)

Epic Eiryss. Need I explain that one ;-P

Also, although discordia is a great fit for Ravyn, I actually really like a Phoenix with her. She can give it a healthy threat range with Locomotion (from up to 12" away due to arc node), and what's not to love about a SPD6, Reach PS17 Combusting heavy warjack?

I hardly ever run Rahn without going to tier 3... but your list has so much potential I'm reluctant to suggest any changes! If you can squeeze in a Chimera though that would be helpful. Only thing better than Rahn with an arc node, is Rahn with TWO arc nodes!

For what it's worth, I'm taking these lists to a tournament in Dublin (Ireland) tomorrow. Ossyan and Ravyn can usually take the same guys and perform about the same (although Ossyan gives more to the HH than Ravyn). Cheers!

Neil

List one: (No theme)

Lord Arcansit Ossyan (+6 points)
1xPhoenix (10 points)
Arcanist (1 point)
10 Mage Hunter Strike Force (8 points)
+ UA (2 points)
10 Dawnguard Invictors (10 points)
+ UA (2 points)
+Soulless Escort (1 point)
Aiyana & Holt (4 points)
Epic Eiryss (3 points)

Reinforcements

Destor Thane (4 points)
Narn (3 points)

List two: (Theme list – tier 3)

Adeptis Rahn (+6 points)
2xPhoenix (20 points)
Arcanist (0* points)
10 Houseguard Halberdiers(7 points)
+UA (2 points)
6 Battle Mages (5 points)
+ Soulless Escort (1 point)
3* Battle Magister Solos (6 points)

Reinforcements:

Arcanist (1 point)
6 Battle Mages (5 points)
+ Soulless Escort (1 point)