How is disease demon bugged? I used it extensively in BootCamp. Work pretty well.
And Diseasing 5% of a army is a rather nice effect. Sure it will not kill them now. But in a few turns it will thin out, get afflictions etc. Mages need regen items, or you need GoH, or the Chalice. Of course you never cast one rain of toads. You cast it that often that there are no toads anymore in the whole world. Toadicide! It is only 10 slaves. Disease demon is more expensive.
Edit: Fixing old age would be a nice benefit indeed.
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About the *LOTS* remark, remember that price is linked to paths, so increasing the Chalice to N6S5 (now n4s3) it would cost 65N and 40S. But it would also require very large paths. I don't know if these are even accessible to C'tis, if balancing those nations is your plan. (And rushing to con8 would still be useful just to get a hammer
).
Anybody ever try out what happens when you have multiple chalices in a game?