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==Possible Modifier Combinations==
The odds for different possible modifier combinations, courtesy of some unofficial fan calculations. Bear in mind that some modifiers are Boss or Champion only, and that the same modifier can not spawn twice on the same monster.
Champion packs can have:
* 23 different combinations of affixes in Normal
* 253 different combinations of affixes in Nightmare
* 1771 different combinations of affixes in Hell
* 8855 different combinations of affixes in Inferno
Rare packs can have:
* 22 different combinations of affixes in Normal
* 231 different combinations of affixes in Nightmare
* 1540 different combinations of affixes in Hell
* 7315 different combinations of affixes in Inferno
That is, if there are no restrictions in place.