This spell creates a pact which is enforced by celestial or fiendish forces. You and another willing creature commit to a mutual agreement, clearly declaring your parts of the agreement during the casting.

A 60-foot radius storm cloud that is 10 feet high appears in a space 100 feet above you. If there is not a point in the air above you that the storm cloud could appear, the spell fails (such as if you are in a small cavern or indoors).

You create a sphere of poisonous, sickly green fog, which can spread around corners but not change shape.

Until the spell ends, you can use an action to spit venom, making a ranged spell attack at a creature or object within 30 feet.

You summon forth the spirit of a beast that takes the physical form of your choosing in unoccupied spaces you can see. 

Choose one of the following:

You summon a creature from the realms celestial.

You summon a creature from the Elemental Planes. This creature uses the statistics of a conjured elemental creature (detailed below) with certain traits determined by your choice of its type: air, earth, fire, or water.

The creature is friendly to you and your companions and takes its turn immediately after yours. It obeys your verbal commands. Without such commands, the creature only defends itself.

You summon a creature from the Dreaming. This creature uses the statistics of a fey creature (detailed below) with certain traits determined by your choice of its type: hag, hound, or redcap. 

The creature is friendly to you and your companions and takes its turn immediately after yours. It obeys your verbal commands. Without such commands, the creature only defends itself.

You summon up to 3 creatures from the Elemental Planes. These creatures use the statistics of a minor elemental with certain traits determined by your choice of its type: air, earth, fire, or water.

You summon up to 3 creatures from the Dreaming.