Rare
Drums of War
Spellcasting Focus
Arcane Rhythm: Adjust the die size of cantrip spells you cast by 1 step (min d4; max d12).
Songweaver's Crescendo (1/safe rest): Adjust the size of die rerolled by your Songweaver's Inspiration by 1 step (min d4; max d12).
Higher rarity versions may adjust die size up to 2 steps and to a max of d20 or even d100.