Tower of Fortune odds
I am amazed to see how predictable ToF has become. The below scenario accounts for nearly one in two runs:
1 - useless spell or 1 feather (!)
2 - 1 or 2 more feathers
3 - pig!
I have not hit gems in the first two rounds, and of course there are no pigs there (thanks). Round 3 is either a pig or something useless, 4 is most always a pig, etc.
You may be at level 15 before you have anything worthwhile like 30-40 pearls. To get to 15 or 20 you will likely encounter pigs at 20, 50, 100, and even 200 so you'll reach 15-20 by meeting 4 pigs and spending 370 gems. If you're lucky you may collect 100-200 by then.
I can understand the odds before 5's and 10's levels. But feather, feather, pig is getting old.