Updates to this post (though I am not the OP):

Dwarf renamed to Gnome.

Solo scroll:
Only has 1 level: ongoing: add +1 blood if only 5 units are played, otherwise -2 blood.

Undercover scroll:
<not sure, I never buy this one>

Talent scroll:
<just released in new update; anyone have info? I am very curious, but I am in the middle of a long crawl atm>