Sash of Sorcerous Synergy (Patreon)

Wondrous item, rare (requires attunement by a sorcerer)

This miraculous one-shouldered robe is made from fine fabrics that have been steeped in powerful magic and fastened with an ornate buckle. The sash has 5 charges and regains 1d4 + 1 expended charges daily at dawn. When an ally that you can see within 60 feet of you casts a spell while you're wearing this robe, you can use your reaction to expend 1 or more of the sash's charges to twist the spell with one of your known Metamagic options, without spending any sorcery points. The number of charges you expend is equal to the number of sorcery points the Metamagic option would normally cost. If using the sash would cause the spell to target a second creature, you choose the new target.

In addition, when you use a Metamagic option on a spell while wearing this sash, you can change the style, color, and material of the garment and buckle. The sash's weight doesn’t change. Regardless of its appearance, the sash can’t be anything but a one-shouldered robe.

In spite of herself, Holly felt a twinge of guilt every time she managed to take advantage of Oscar's hard work. He'd always studied so diligently, only for her natural talent to let her catch up, yet she still would have failed so many times if her friend hadn't been there. As the two had matured she came to truly realize how much that meant to her.

So, while she watched Oscar struggling uselessly to build up magic energy from inside the field of absolute silence they had been trapped in, Holly realized this was the perfect opportunity to make amends. As she ran her fingers along her sash, Oscar felt a unique flow of magic running through his veins. While the cleric of death laughed at his attempts to cast within the ball of silence, Oscar cocked his head, gripped his wand, and, without a word or a gesture, disintegrated the villain where he stood.

As the silence broke the two young mages turned to each other as Oscar blurted out, "By the soul of magic itself, is that how you feel all the time?"