Explodes when bearer is slain, causing variable hits and damage.

Note that the Heart of Woe is strictly a one use item! Although it hardly seems necessary to put this on the card, there are a few circumstances where it actually matters. For example, if a character has the Heart of Woe and the Carstein Ring, the situation can arise where the character is slain, explodes as per the Heart of Woe, and is then reincarnated together with his magic items. Such a character is reincarnated but the Heart of Woe is spent and cannot be used again. The same comment applies to the Apotheosis spell and the Heart of Woe.