Cuuko's Magic Emporium

Wondrous Item, rare (requires attunement by a wizard)

This circular brooch is made of gold with and bears the emblem of a magic school. When you attune to the emblem, you must choose one of the eight magic schools (abjuration, conjuration, divination, enchantment, evocation, illusion, necromancy, or transmutation) to be your "loyalty" school. The emblem changes to match your choice.

While wearing the emblem, you gain the following benefits:

• Once per day, you can use the emblem to cast a prepared spell of your chosen school that requires a level-1 spell slot, without expending a slot. You must still use the normal components and actions required to cast the spell.

• Additionally, you gain a +1 bonus to your spell attack rolls and spell save DCs for spells of your chosen school.

However, if you cast a spell that is not of your chosen school, you instantly lose your attunement to the emblem until you finish a long rest and re-attune to it.

Creation Notes

Inspiration words: school and power.

Magic schools was the obvious choice here. I like idea of the tough choices this item could cause.