Mind Crystal (Empowered)

D&D 2024 item: Mind Crystal (Empowered). Source: Phandelver and Below: The Shattered Obelisk. type Wondrous Item, Uncommon rarity This gemstone contains a crystallized bit of spellcasting magic. When you cast a spell that has a casting time of 1 action while holding the mind crystal, you can modify the spell in the way described below. You can use only a single mind crystal to modify the spell, and you can't use a mind crystal and a Metamagic option on the same spell. Once you use the mind crystal, it becomes a nonmagical gem worth 50 gp. Modify Spell When you roll damage for the spell, you can reroll up to three damage dice. You must use the new rolls. Wondrous Item Uncommon