If you hold this beetle-shaped medallion in your hand for 1 round, an inscription appears on its surface revealing its magical nature. It provides two benefits while it is on your person:

• You have advantage on saving throws against spells.
• The scarab has 12 charges. If you fail a saving throw against a necromancy spell or a harmful effect originating from an undead creature, you can use your reaction to expend 1 charge and turn the failed save into a successful one. The scarab crumbles into powder and is destroyed when its last charge is expended.

Candle of Invocation

Wondrous item, very rare (requires attunement)

This  big fat tall cs dedicated to a deity and shares that deity’s alignment. The candle’s alignment can be detected with the detect evil and good spell. The GM chooses the god and associated alignment or determines the alignment randomly.
Chaotic Good

The candle’s magic is activated when the candle is lit, which requires an action. After burning for 4 hours, the candle is destroyed. You can snuff it out early for use at a later time. Deduct the time it burned in increments of 1 minute from the candle’s total burn time.

While lit, the candle sheds dim light in a 30-foot radius. Any creature within that light whose alignment matches that of the candle makes attack rolls, saving throws, and ability checks with advantage. In addition, a cleric or druid in the light whose alignment matches the candle’s can cast 1st- level spells he or she has prepared without expending spell slots, though the spell’s effect is as if cast with a 1st-level slot.

Alternatively, when you light the candle for the first time, you can cast the gate spell with it. Doing so destroys the candle.

Tomb of Corellion - Tome of Leadership and Influence - Wondrous item, very rare

This book contains guidelines for influencing and charming others, and its words are charged with magic. If you spend 48 hours over a period of 6 days or fewer studying the book’s contents and practicing its guidelines, your Charisma score increases by 4, as does your maximum for that score. The manual then loses its magic, but regains it in a century.