ok, I'm testing it out again - odd number you minus 5/ even number add 10
3 rolls:
Lemon Cheesecake rolled 5d6 and got a total of 22:
4, 6, 6, 5, 1
10+10+10-5-5 = 20
Lemon Cheesecake rolled 5d6 and got a total of 18:
4, 2, 3, 5, 4
10+10-5-5+10= 20
Lemon Cheesecake rolled 5d6 and got a total of 11:
1, 3, 4, 1, 2
-5-5+10-5+10= 5
20+20+5= 45