Conjure Slime Swarm

You conjure a swarm of slimes around you in a 15-foot radius, causing 2d6 damage of Acid, Cold, Fire, Lightning, or Poison (Your Choice of Damage Type.)  In addition, the ground that the slimes create is considered difficult terrain.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 4.