Conjure Animals 5e

You conjure nature spirits that appear as a swarm of spectral animals in a 15-foot-radius Emanation centered on a point within range. Each creature you can see in that area when the spirits appear must make a Dexterity saving throw, taking 2d10 Slashing damage on a failed save or half as much on a successful one. During each of your subsequent turns for the duration, you can take a Magic action to move the Emanation up to 30 feet and repeat the saving throw. At Higher Levels: The damage increases by 1d10 for each slot level above 3rd.