Random is the most likely answer.
However, I have recieved a couple more since then, and have not sac'd a large quantity.-Silverhammers
Where these potions gotten on priest accounts? What kind of altar? Full favour? -Daz
Yes, priest account. Never on full favor. I always do it when I am at 25% favor. And it never happens when I look to see if I had gotten one. -Silverhammers