Right the Stars

7th-level divination (temporal)

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 cosmic potency. Until the spell ends, the maximum duration of any conjuration spell you cast that requires concentration is doubled, any creature that you summon or create with a conjuration spell has 30 temporary hit points, and you have advantage on Charisma checks and Charisma saving throws.