Right the Stars

6th-level divination (ritual, void magic)

Casting Time: 10 minutes
Range: Self
Components: V, S, M (seven black candles and a circle of powdered charred bone or basalt)
Duration: 1 hour

You subtly warp the flow of space and time to enhance your conjurations with accursed cosmic potency. Until the spell ends, the duration of your conjuration spells are doubled, any creature that you summon or create with a conjuration spell has 30 temporary hit points, and you have advantage on concentration checks, Charisma checks, and Charisma saving throws.