Book of demons

{t}, Sacrifise book of demons:
Roll a dice. Result is:
1: Create 1/1 Goblin.
2: Create 2/2 Skeleton.
3: Create 3/3 Ork.
4: Create 4/4 Minotaur.
5: Create 5/5 Mutant.
6: Create 6/6 Demon.