Wow!! I never knew there were other kinds of recipe. Are there more than the ones shown? I played belzebub for a long time and ve never seen such recipes. I started playing tchernobog and now I will wait for other updates. But even so it shows a side of the game I never knew. I hope the next version of tchernobog includes torment difficulty, so that we can find items like that.
They don't normally drop in the game. They are test recipes but if you try to make them the stats are very low and the item is not viable. It's a very good idea though...too bad it's not fully implemented
There are other test items such as "unholy ascension" and "perdition blade" (both uniques) but there are no stat templates in them.