The Heart of Baga (Elemental Gem, Red Corundum)

Uncommon

This gem contains a mote of elemental energy. When you use an action to break the gem, a fire elemental is summoned as if you had cast the conjure elemental spell, and the gem's magic is lost. A tiny shard of Baga’s soul is still inside the elemental gem, when you decide to use it, the fire elemental is shaped like a minotaur with a black five-leaf tattoo on the back of its right hand.