- Specific Unique Drop from each super boss need more specifics here :
Diablo Lord of Terror
1/10 for anni and other thing, 1/100 - 1/5000 for flaming sword, not sure exactly
Butcher
1/10
Skeleton King
1/10
Mappo
same as puzzle box for all dreamland bosses, see puzzle box explanation in previous quote, cthulu items are 1/100 see this post for dreamlands full drop list http://annihilus.net/showthread.php?t=8111
Otuyeg
SSSAAhh
Khalut
Lich King
1/10 for boot, belt, dagger - I think its somewhere between 1/100 - 1/1000 for frostmourne, not sure exactly
Avatar of Azatoth
not sure what the drop rate for caches is, I think its like 1/2 or 1/3
cow queen
not sure
K'narst
1/100 for ribcage
Mechanical Machine
1/100 i think for short circlet, not sure
Ifritz
not sure, I think same as machine and sewer guy
Sewer King?
1/100 I think for alkor charm
Sorry for the spelling :P