Prismatic Scepter
Rod, uncommon (requires attunement by a spellcaster)
This scepter has 7 charges. While holding it, when you cast a spell of 1st level or higher that deals acid, cold, fire, lightning, poison, or psychic damage, you can expend 1 of its charges to change the damage type. Roll a d6 to determine the spell’s new damage type from the following: 1-acid, 2-cold, 3-fire, 4-lightning, 5-poison, 6-psychic. The scepter regains 1d6 + 1 expended charges daily at dawn. If you expend the scepter's last charge, roll a d20. On a 1, the scepter shatters, deals 1d8 acid, 1d8 cold, 1d8 fire, 1d8 lightning, 1d8 poison, and 1d8 psychic damage to you, and is destroyed.
From their opalescent thrones, the members of the Prismatic Parliament wield great power. The chief symbol of this power is the scepter. Clutched within a claw atop each scepter is a prism that they exploit to twist their spells as deftly as they twist their words.