Library Lore: Heart of Nizchetus

Cheatus? Nietzscheus? The only information on this magical item found in the lore are this:
“This heart is said to be sealed in a green glass jar. The heart was that of a powerful Toreador, and some say the heart still beats, due to either its own magic or magic contained in the jar and its fluids. The heart is thought to bring good luck if kept on a mantelpiece in the owner's haven, possibly lowering the owner's difficulty numbers.”
- The Player's Guide to the Sabbat (WW 2055)

Explanation for those that never played Vampire the Masquerade or any other rpg: In the game you occasionally roll 10-sided dice to check if your actions succeed. The “difficulty number” is the result you want to roll, or beat, with each dice.

The flavor text of the card suggest that the Heart at some point was possessed by the notorious once count of Bistriz and in modern nights itinerant Sabbat Cardinal of the New World:
“Occasionally, I think I see it beat. Just dancing shadows, perhaps, but fortune follows.”
- Radu Bistri, Tzimisce