I will put my opening dice rolls here as a spoiler. Pretty much an example of how I'll proceed without invisible castle...
Without access to invisible castle I made up a roll system so so integrity would be in the system....
The first roll is 2d6 with the sum being used. That will determine which of 4 rolls will be used on each try....
I made three attempts to cast a analyze device spell and got 5 hits on third try and took 7 points of drain.
I healed 4 points in my first extended test.
ROLL DICE ONLINE WEBSITE USED3 - 1 (Avg: 2,0)//
(Total avg: 2,0)/// this roll will determine which pool to use a sum of 1-3 is first roll, 4-6 is second roll
7-9 is third roll, 10-12 is fourth roll
2 - 4 - 5 - 6 - 4 - 3 - 5 - 5 - 1 - 6 - 3 - 6 - 3 - 6 - 4 - 3 - 4 - 4 - 3 - 4 - 5 - 1 (Avg: 3,95454545455)
5 - 5 - 4 - 1 - 2 - 2 - 4 - 4 - 4 - 4 - 3 - 5 - 6 - 2 - 2 - 2 - 3 - 4 - 5 - 5 - 5 - 1 (Avg: 3,54545454545)//this one one hit
3 - 4 - 3 - 2 - 4 - 1 - 5 - 1 - 6 - 5 - 6 - 2 - 6 - 6 - 2 - 4 - 2 - 4 - 2 - 4 - 2 - 5 (Avg: 3,59090909091)
3 - 5 - 6 - 2 - 2 - 2 - 2 - 5 - 6 - 1 - 2 - 4 - 2 - 6 - 4 - 6 - 5 - 3 - 6 - 4 - 5 - 5 (Avg: 3,90909090909)
(Total avg: 3,75)
edge roll...
2 - 2 - 6 - 2 - 5 - 1 - 2 - 4 - 2 - 3 - 3 - 6 - 4 - 3 - 6 - 4 - 1 - 6 - 3 - 4 - 4 (Avg: 3,47619047619)
5 - 3 - 3 - 2 - 6 - 3 - 3 - 3 - 3 - 2 - 6 - 2 - 3 - 3 - 3 - 2 - 2 - 6 - 1 - 5 - 5 (Avg: 3,38095238095)//this one 3 hits
4 - 5 - 1 - 3 - 6 - 4 - 3 - 1 - 4 - 5 - 6 - 6 - 5 - 4 - 5 - 4 - 1 - 5 - 4 - 5 - 1 (Avg: 3,90476190476)
5 - 1 - 4 - 5 - 2 - 6 - 4 - 3 - 5 - 1 - 3 - 5 - 5 - 2 - 5 - 2 - 5 - 1 - 6 - 1 - 3 (Avg: 3,52380952381)
(Total avg: 3,5714285714)
no hit one edge resist(not shown) so drain is 4 stun.... leaving 8
second try....
1 - 3 (Avg: 2,0)// second set
(Total avg: 2,0)
6 - 6 - 6 - 4 - 2 - 3 - 4 - 6 - 1 - 2 - 5 - 4 - 2 - 1 - 6 - 4 - 6 - 2 - 1 - 5 - 1 - 6 (Avg: 3,77272727273)
1 - 4 - 4 - 3 - 1 - 6 - 2 - 2 - 1 - 4 - 5 - 6 - 4 - 4 - 4 - 4 - 5 - 5 - 6 - 2 - 5 - 2 (Avg: 3,63636363636)//this one 3 hits
5 - 3 - 1 - 1 - 5 - 5 - 3 - 2 - 2 - 4 - 4 - 6 - 6 - 3 - 1 - 6 - 3 - 5 - 5 - 5 - 2 - 2 (Avg: 3,59090909091)
5 - 3 - 3 - 2 - 1 - 2 - 4 - 3 - 6 - 5 - 1 - 5 - 5 - 1 - 2 - 6 - 2 - 3 - 6 - 5 - 3 - 1 (Avg: 3,36363636364)
(Total avg: 3,5909090909)
5 - 3 - 4 - 1 - 5 - 3 - 2 - 5 - 5 (Avg: 3,66666666667)
6 - 3 - 3 - 3 - 6 - 6 - 3 - 3 - 5 (Avg: 4,22222222222)//this one 3 hits all drain resisted
1 - 3 - 1 - 3 - 5 - 2 - 4 - 1 - 3 (Avg: 2,55555555556)
1 - 3 - 3 - 5 - 4 - 5 - 1 - 1 - 2 (Avg: 2,77777777778)
third try...
3 - 4 (Avg: 3,5)/// third set
(Total avg: 3,5)
5 - 5 - 2 - 4 - 5 - 4 - 5 - 3 - 3 - 6 - 6 - 2 - 6 - 1 - 1 - 1 - 2 - 3 - 6 - 2 - 3 - 6 (Avg: 3,68181818182)
6 - 1 - 6 - 5 - 4 - 2 - 5 - 1 - 4 - 4 - 2 - 5 - 5 - 5 - 1 - 2 - 4 - 1 - 3 - 4 - 6 - 5 (Avg: 3,68181818182)
1 - 5 - 4 - 2 - 6 - 4 - 1 - 3 - 3 - 6 - 5 - 6 - 5 - 2 - 4 - 6 - 6 - 4 - 5 - 3 - 2 - 3 (Avg: 3,90909090909)/// this one 5 hits
6 - 1 - 2 - 2 - 6 - 6 - 5 - 6 - 6 - 5 - 1 - 2 - 1 - 1 - 1 - 2 - 2 - 1 - 6 - 2 - 2 - 3 (Avg: 3,13636363636)
(Total avg: 3,6022727273)
5 - 3 - 1 - 6 - 2 - 2 - 6 - 4 - 2 (Avg: 3,44444444444)
6 - 5 - 1 - 3 - 3 - 5 - 2 - 6 - 6 (Avg: 4,11111111111)
1 - 3 - 2 - 6 - 5 - 2 - 2 - 3 - 1 (Avg: 2,77777777778)//this one one point of drain resisted...leaving 4
5 - 2 - 6 - 1 - 3 - 6 - 1 - 3 - 3 (Avg: 3,33333333333)
healing test...
4 - 3 (Avg: 3,5)/// third set
(Total avg: 3,5)
6 - 3 - 1 - 3 - 2 - 6 (Avg: 3,5)
6 - 4 - 6 - 5 - 4 - 4 (Avg: 4,83333333333)
6 - 2 - 5 - 5 - 3 - 4 (Avg: 4,16666666667)/// this one one hit
4 - 6 - 1 - 2 - 4 - 2 (Avg: 3,16666666667)
(Total avg: 3,9166666667)
1 - 4 - 5 - 1 - 4 (Avg: 3,0)
3 - 6 - 2 - 5 - 1 (Avg: 3,4)
4 - 5 - 6 - 6 - 6 (Avg: 5,4)//// this one 3 hits
3 - 2 - 3 - 3 - 6 (Avg: 3,4)
(Total avg: 3,
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3 - 3 - 6 - 4 (Avg: 4,0)
2 - 6 - 5 - 2 (Avg: 3,75)
3 - 5 - 3 - 1 (Avg: 3,0)//// no hits
6 - 5 - 4 - 1 (Avg: 4,0)
(Total avg: 3,6875)
5 - 2 - 4 (Avg: 3,66666666667)
4 - 6 - 3 (Avg: 4,33333333333)
1 - 4 - 5 (Avg: 3,33333333333)/// this one no hits
4 - 5 - 5 (Avg: 4,66666666667)
(Total avg: 4,0)
4 - 1 (Avg: 2,5)
4 - 5 (Avg: 4,5)
3 - 2 (Avg: 2,5)/// this one no hits
4 - 3 (Avg: 3,5)
(Total avg: 3,25)
Host Owner/Operator since the book says you can't change owners of a host.