Lord Yelinak does not drop the item Sacrifice
 

https://wiki.project1999.com/Sacrifice_(item)

Sacrifice has never dropped off Lord Yelinak.

that law of large numbers

Yes, it has. :)

its a shitty item please remove it from the loot table and while you are at it, fix Yelinak so he drops 2-4 items + Key + Head every time based on the classic evidence here:

http://www.project1999.com/forums/sh...t=lord+yelinak

It absolutely has dropped.

Killed it maybe 20 times on red (a brief period) these were on rot status