I get tons of chains but I like doing sunken crypts. I have done about 12 so far this time and am sitting on over 30 chains. Last crypt had 7 chains scattered in various chests, a bonanza.

Have found that the only time I ever get a daytime wraith is my first wraith of a run through. Think it's on purpose to familiarize us with them before night attacks. I could be wrong but that's been my experience. Trophies so rare. If you get one, quick go get a lotto ticket.