The Dark Throne

My next thing to do.

http://tempusfugitives.co.uk/pdf/wfb/The%20Dark%20Throne.pdf

Thats the rules pack. As you can see its a narative driven story. Played over the weekend. I wasnt overly taken by it till I realised I can finaly field my trolls at something, and not cry too much when purple sun wipes them out.

So I need a 1500 point list, a 3000 point list incorperating the 1500 and a watchtower. Now the big thing... I need a THEME!  Something different for them, every bugger goes SNOW!

Here are the lists.

1500

Troll King Throgg
6 Trolls
6 Trolls
3 Dragon Ogres - GW
3 Ogres - mus, standard, GW, CA
Chaos warshrine of Tzeenthc
Hellcannon

Main downside, no BSB. I just cant fit one in and keep the theme.

Heres the 3000.

Troll King Throgg
Galrauch
Tzeentch Hero - BSB, Chariot, extra handweapon, talisman of persiveriance.
6 Trolls
6 Trolls
6 Trolls
3 Dragon Ogres - GW
6 Ogres - mus, standard, GW, CA
Chaos warshrine of Tzeentch
Chaos warshrine of Tzeentch
Hellcannon
6 Warhounds


So, now I have a BSB.  Problem, he breaks fluff. But I can fix that with a rhinox rider counts as. So thoughts? And any ideas for a theme or base style ect?