Phantom Panther

You conjure a spectral panther that pounces on a creature you can see within range, mauling and pinning it for your allies close in for the kill.

The target makes a Strength saving throw. On a failed save, the target takes 8d6 (avg 28) type=force damage and has the Restrained condition until the spell ends. On a successful save, the target takes half as much damage only, and the spell ends. While Restrained, the target takes 2d6 (avg 7) type=force damage at the start of each of its turns. The target or a creature within reach of it can take an action to make a Strength (Athletics) check against your spell save DC. On a success, the spell ends.

Using a Higher-Level Spell Slot. The damage increases by 1d6 (avg 3.5) for each spell slot level above 3.