Wondrous Item

Legendary Requires Attunement

When dealt physical damage, the heart gives off a violent blast of magical energy, dealing radiant damage equivalent to the original attack in a 20ft radius sphere. If attacked by necrotic damage this ability does not trigger, and the heart takes double damage.   The heart has 100 HP total. If the heart reaches 0 due to physical damage, it violently collapses, dealing 10d10 radiant damage in a 300ft sphere. If the heart reaches 0 due to necrotic damage, the heart slowly begins to shrivel up, until it is about the size of a grape, at which point it collapses into dust.

The still-beating heart of one of the greatest sorcerers who ever lived. It can be used to amplify or power large spells, and was lost during the Great Upheaval. The heart pulses as though it still beats, and it... glows purple?

Strange, I almost want to... touch it

[The rest of the manuscript is burnt away]