Conjure Elemental
Source: Player’s Handbook
5th-level conjuration
Casting Time: Action
Range: 60 feet
Components: V, S, M (burning incense for air, soft clay for earth, sulfur and phosphorus for fire, or water and sand for water)
Duration: Concentration, up to 10 minutes
You conjure a Large, intangible spirit from the Elemental Planes that appears in an unoccupied space within range. Choose the spirit’s element, which determines its damage type: air (Lightning), earth (Thunder), fire (Fire), or water (Cold). The spirit lasts for the duration.
Whenever a creature you can see enters the spirit’s space or starts its turn within 5 feet of the spirit, you can force that creature to make a Dexterity saving throw if the spirit has no creature Restrained. On a failed save, the target takes 8d8 damage of the spirit’s type, and the target has the Restrained condition until the spell ends. At the start of each of its turns, the Restrained target repeats the save. On a failed svae, the target takes 4d8 damage of the spirit’s type. On a successful save, the target isn’t Restrained by the spirit.
Using a Higher-Level Spell Slot. The damage increases by 2d8 for each spell slot level above 5.