Encounter 1
1 12*12
Encounter 2
2 4*8
Encounter 3
1 12*12
Encounter 4
1 12*12
Encounter 5
4 4*8
Encounter 6
1 12*12 (included)
Encounter 7
1 12*12
1 EP
Encounter 8
1 12*12
Encounter 9
1 12*12
3 4*8
Encounter 10
1 12*12
Encounter 11
2 12*12
Encounter 12
1 12*12
Encounter 13
5 12*12
2 4*8
Encounter 14 (all parts combined)
6 12*12 (2 included)
2 4*8
Encounter 15
3 12*12
That would make the grand total required:
13 x 8*4
22 x 12*12