[Vorkosigan]

I actually really like Watchtowers and Mausoleums, but I'm not sure how good they are in multiplayer, so I went for the Wizards Tower instead. Anything that takes > 2 turns to build or costs > 300 gold is too expensive and too slow for my taste.

My Abysia design uses Watchtowers, but I was reluctant to post it because it is a bit odd.

ABYSIA (base theme)

Pretender: Ghost King (yes, I'm insane)
Magic: 3A, 3W, 3E, 3D, 3B
Scales: 3 Order, 3 Production, 3 Heat, 3 Death, 2 Misfortune, 3 Magic
Dominion: 7
Castle: Watchtower
Pts left: 1

Prophet: Anathemant Salamander
Key Troops: Abysian Infantry (w/morningstar), Warlock Apprentice, Demonbred
Key Spells: Bind Devil

Research: Alt-3, Blood-3 (Bind Devil), Constr-4 (Sanguine Dowsing Rod), Blood-5 (Ice Devil), Constr-6 (equipment for IDs)

Notes: Build Warlock Apprentices as fast as possible, send 3 per province with pop 6k-8k to bloodhunt, set taxes to 0. At Blood 3 build Demonbred, have them cast Bind Devils. at Blood 5 have Ghost King summon Ice Devils. Alternatively, get Constr-2, build a Dwarven Hammer then build Soul Contracts. Constr-6 gives you Blood Thorns, which are essential for your IDs.